1
|
Lee J, Lim YJ, Ahn JS, Kim B, Baek YW, Lim BS. Correlation of two different devices for the evaluation of primary implant stability depending on dental implant length and bone density: An in vitro study. PLoS One 2024; 19:e0290595. [PMID: 38776308 PMCID: PMC11111012 DOI: 10.1371/journal.pone.0290595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/27/2023] [Indexed: 05/24/2024] Open
Abstract
Non-invasive objective implant stability measurements are needed to determine the appropriate timing of prosthetic fitting after implant placement. We compared the early implant stability results obtained using resonance frequency analysis (RFA) and damping capacity analysis (DCA) depending on the implant length and bone density. Total 60, 4.0 mm diameter implants of various lengths (7.3 mm, 10 mm, and 13 mm) were used. In Group I, low-density bone was described using 15 PCF (0.24 g/cm3) polyurethane bone blocks, and in Group II, 30 PCF (0.48 g/cm3) polyurethane bone blocks were used to describe medium density bone. RFA was performed using an Osstell® Beacon+; DCA was performed using Anycheck®. Measurements were repeated five times for each implant. Statistical significance was set at P <0.05. In Group I, bone density and primary implant stability were positively correlated, while implant length and primary implant stability were positively correlated. In Group II, the implant stability quotient (ISQ) and implant stability test (IST) values in did not change significantly above a certain length. Primary implant stability was positively correlated with bone density and improved with increasing implant length at low bone densities. Compared with the Osstell® Beacon+, the simplicity of Anycheck® was easy to use and accessible.
Collapse
Affiliation(s)
- Jungwon Lee
- Department of Dental Biomaterials Science, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Young-Jun Lim
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Jin-Soo Ahn
- Department of Dental Biomaterials Science, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Bongju Kim
- Dental Life Science Research Institute, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - Yeon-Wha Baek
- Department of Prosthodontics, Gwanak Center, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - Bum-Soon Lim
- Department of Dental Biomaterials Science, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| |
Collapse
|
2
|
Palomino-Zorrilla JJ, Córdova-Limaylla NE, Rosas-Díaz JC, Cayo-Rojas CF, Cervantes-Ganoza LA, Guerrero ME. Jawbone quality classification in dental implant planning and placement studies. A scoping review. J Int Soc Prev Community Dent 2024; 14:89-97. [PMID: 38827351 PMCID: PMC11141890 DOI: 10.4103/jispcd.jispcd_4_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 06/04/2024] Open
Abstract
Aim Cone beam computed tomography has become an attractive method for implant planning. However, in most cases, not all the information is taken advantage of and often the radiographic evaluation of bone quality is based on subjective assessment by the individual clinician. Therefore, the aim of this study was to examine classifications of bone tissue characteristics and methods for assessing them in dental implant planning and placement studies. Materials and Methods Three databases (Pubmed, Scopus, Web of Science) were searched using specific index terms: "Bone quality, bone quantity, bone density, cone-beam CT and cone-beam computed tomography". Three reviewers selected titles and analyzed abstracts according to inclusion and exclusion criteria. Some descriptions of bone tissue characteristics (bone quality, density, and quantity) used before or during dental implant placement were selected and categorized. Results The search yielded 442 titles. A total of 32 articles were selected and read in full text. Seventeen articles were considered relevant. Different classification systems were found to evaluate bone tissue characteristics as well as different examination protocols. Thirteen publications included in this review reported on bone quality and quantity using the Lekholm and Zarb classification. However, only four studies implemented and/or proposed modifications of the Lekholm and Zarb system. Four other publications described bone quality according to different classification systems such as Misch, University of California Los Angeles (UCLA), or Trisi and Rao. The assessment methods were often briefly described (or not described at all in one publication). Of the articles analyzed, five presented observer performance, whereas three presented diagnostic accuracy of the assessment method. Conclusion Currently, there are different classification systems applied to dental implant planning and placement, particularly regarding whether bone quality or quantity affects treatment outcomes. However, most authors have not validated the diagnostic accuracy and reproducibility of the classification used. Therefore, it is necessary to develop a classification system consistent with characteristics of bone tissue, taking into consideration an adequate description of bone tissue assessment methods, their diagnostic accuracy, and observer performance.
Collapse
Affiliation(s)
| | | | - José C Rosas-Díaz
- School of Stomatology, Universidad Privada San Juan Bautista, Lima, Peru
| | - César F Cayo-Rojas
- School of Stomatology, Universidad Privada San Juan Bautista, Lima, Peru
| | | | - Maria E Guerrero
- Faculty of Dentistry, Department of Medico Surgical Stomatology, Universidad Nacional Mayor de San Marcos, Lima, Peru
| |
Collapse
|
3
|
Terekhov SS, Proshchenko AM, Proshchenko NS, Shorikova DV. Clinical efficiency and stability of surface-modified implants: acid modification versus photoactivation. POLSKI MERKURIUSZ LEKARSKI : ORGAN POLSKIEGO TOWARZYSTWA LEKARSKIEGO 2024; 52:42-48. [PMID: 38518232 DOI: 10.36740/merkur202401107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
OBJECTIVE . Aim: To study the stability of surface-modified dental implants, with the usage of sandblasting/acid modification vs. photoactivation. PATIENTS AND METHODS Materials and Methods: In the observation were included 164 patients with dental defects. All patients had digital impressions taken by scanning the oral cavity with an intraoral scanner 3Shape TRIOSR. Group A (80 subjects) included implants whose surface was modified with a combination of sandblasting and acid. Group B (84 subjects) - implants after modification with photoactivation. The implant stability quotient was recorded using an Osstell MentorTM device. RESULTS Results: The reliable effectiveness of the photoactivation method in complex treatment of the surface of dental implants in improving the stability of fixed dentures in the short and long-term periods of observation was proven. When assessing immediate clinical outcomes, there was no significant difference in the frequency of hyperemia, algesia, hyperthermia, soft tissue edema, regional lymphadenitis, depending on the classical method of treating the implant surface and the complex method with photoactivation. Of the long-term clinical outcomes with classical surface treatment, the absolute risk of implant failure was 1.2%, relative risk - 0,99 [CI%0,96-1,0]. The average value of the implant stability coefficient (ISQ) and the data of the Periotest study at the time of surgery probably did not differ in the observation groups, after 3 months, a higher index was proven in the treatment of the surface by the method of photoactivation and greater stability of the mandibular implants. At the time of implantation, there were no statistically significant differences in implant fixation between the groups, however, during prospective observation in group A, secondary stability indicators based on periotestometry results were significantly lower. CONCLUSION Conclusions: It was proved the reliable effectiveness of the photoactivation-method for surface modification in the short and long-term periods of observation for improving the results of orthodontically treatment.
Collapse
Affiliation(s)
- Serhii S Terekhov
- INSTITUTE OF POSTGRADUATE EDUCATION OF THE O.O. BOGOMOLETS NATIONAL MEDICAL UNIVERSITY, KYIV, UKRAINE
| | - Andriy M Proshchenko
- INSTITUTE OF POSTGRADUATE EDUCATION OF THE O.O. BOGOMOLETS NATIONAL MEDICAL UNIVERSITY, KYIV, UKRAINE
| | - Nina S Proshchenko
- INSTITUTE OF POSTGRADUATE EDUCATION OF THE O.O. BOGOMOLETS NATIONAL MEDICAL UNIVERSITY, KYIV, UKRAINE
| | | |
Collapse
|
4
|
Naeimi Darestani M, Asl Roosta H, Mosaddad SA, Yaghoubee S. The effect of leukocyte- and platelet-rich fibrin on the bone loss and primary stability of implants placed in posterior maxilla: a randomized clinical trial. Int J Implant Dent 2023; 9:23. [PMID: 37555894 PMCID: PMC10412516 DOI: 10.1186/s40729-023-00487-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/23/2023] [Indexed: 08/10/2023] Open
Abstract
PURPOSE In this study, we investigated the effects of leukocyte- and platelet-rich fibrin (L-PRF) on implant stability and alterations in the marginal bone surrounding posterior maxillary implants. METHODS This randomized clinical trial was conducted to compare the variable of L-PRF placement around maxillary implants. Resonance frequency analysis (RFA) was used to evaluate the implant stability immediately after surgery and at 1, 2, 4, 6, 8, and 12 weeks after surgery (t0 to t6, respectively). In addition, the amount of marginal bone changes around the implant at t6 was compared with the baseline using periapical radiography. RESULTS The RFA outcomes were statistically significant within each group (P < 0.001, Eta2 = 0.322); however, in none of the follow-ups and immediately after the surgery, there was a significant difference between the two groups in terms of the implant stability quotient (ISQ) scores (P > 0.05). At t0, the test and control groups' respective mean levels of marginal bone loss around the implants were 0.4836 mm and 0.7343 mm, significantly different from the corresponding values at t6. On the other hand, marginal bone loss around the implant was not significantly different between the two groups in t0 and t6 (P = 0.532). CONCLUSIONS L-PRF did not improve the RFA outcomes of implants three months after implant placement, and changes in the ISQ values over time were the same in both groups. In addition, L-PRF had no superior effect on the marginal bone loss around the implants. TRIAL REGISTRATION NUMBER The research was registered in the Iranian Registry of Clinical Trials on 22 December 2020 (No: IRCT20200624047906N1), available at http://www.irct.ir.
Collapse
Affiliation(s)
| | - Hoori Asl Roosta
- Periodontics Department, Dental Faculty, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Siamak Yaghoubee
- Periodontics Department, Dental Faculty, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
5
|
Reynolds I, Winning L, Polyzois I. A three-year prospective cohort study evaluating implant stability utilising the osstell® and periotest™ devices. FRONTIERS IN DENTAL MEDICINE 2023. [DOI: 10.3389/fdmed.2023.1139407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
ObjectivesTo investigate implant stability measurements from two different devices and at three different time points in order to determine their level of correlation. To also evaluate the influence of a range of clinical characteristics on the values produced by the devices at these three time points.Materials & MethodsMeasurements were recorded at implant placement (T1), implant exposure (T2) and at 3 years from implant placement (T3). A range of clinical data was collected including patient demographics and site characteristics. Stability measurements and clinical characteristics were recorded for 29 patients and 68 dental implants at T1, subsequent stability measurements were recorded for 67 implants at T2 and 58 implants at T3. Correlation testing between the Osstell® and Periotest™ devices was carried out utilising Spearman's rank correlation for each time point. Analysis of the difference between clinical factors and stability measurements was compared using Krushal-Wallis test for each variable and time point.ResultsA single dental implant failed shortly after 2nd stage surgery for an overall survival rate of 98% during the study timeline. The median ISQ value was 73.25 (IQR 67–75) at T1 and 74 (IQR 70.5–77) at T3. The median Periotest value was −4 (IQR −6, −2) at T1 and −6 (IQR −7, −5) at T3. The range of ISQ values observed was 50 (39–89) ISQ at T1 and decreased to 21 (61–82) ISQ at T3. The Periotest values ranged from 37 (29 to −8) at T1 and decreased to 6 (−2 to −8) at T3. A weak to moderate correlation was observed between mean ISQ and Periotest values across time-points T1, T2 and T3, (r = −0.26, p = 0.05), (r = −0.35, p < 0.01) and (r = −0.28, p = 0.04) respectively.ConclusionsBased on the results of this study there was a weak to moderate level of correlation between values recorded between the two measurement devices at implant placement, implant exposure and three years following placement. For both the Osstell® and Periotest™ a narrowing of the range of stability values was observed from T1 to T3. In general, Periotest™ seemed to be more sensitive in highlighting differences in measurements affected by local conditions.
Collapse
|
6
|
Guided Bone Regeneration with Occlusive Titanium Barrier: A Case Report and Clinical Considerations. Biomimetics (Basel) 2023; 8:biomimetics8010106. [PMID: 36975336 PMCID: PMC10046855 DOI: 10.3390/biomimetics8010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/20/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
The need to obtain adequate bone volumes for prosthetic rehabilitation supported by implants, using different techniques and materials, represents an urgent need in modern dentistry. We report a case regarding the management of implant-prosthetic rehabilitation of the first and second upper right molars, in which no less than 4 mm of crestal bone remained to insert two implants. Regeneration of the residual bone was previously performed using a customized titanium barrier and a filler of a blood clot with tricalcium beta phosphate. The bone gain (3 mm) was evaluated by comparing CBCT images, while the implant stability (mean 70) was assessed with the ISQ measurement. A regenerated bone sample was taken for histological analysis. Guided bone regeneration obtained with a titanium barrier and blood clot allowed for the insertion of stable implants in a mature bone without heterologous material.
Collapse
|
7
|
Punnoose K, Kumar G A, B M, Govindarajulu R, V A, A E, Babu J S, C S, Nayyar AS. Osseodensification implant site preparation technique and subsequent implant stability: A pilot study. J Orthod Sci 2022; 11:50. [PMID: 36411812 PMCID: PMC9674936 DOI: 10.4103/jos.jos_45_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/02/2022] [Accepted: 07/11/2022] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE The objective of the present study was to evaluate and compare primary and secondary implant stability of conical endosteal implants placed using osseodensification osteotomy and conventional osteotomy techniques. MATERIALS AND METHODS The present invivo study was designed as a prospective, observational study in which a total of 26 endosteal implants were placed in the posterior edentulous regions of upper and lower jaws in 13 patients divided into two groups, Group A and Group B. In Group A, implants were placed using osseodensification osteotomy technique while in Group B, conventional osteotomy technique was used. Primary implant stability was measured in both groups immediately after implant placement while secondary implant stability was measured in both groups at an interval of 4 months. Statistical analysis was done using Statistical Package for Social Sciences (SPSS) version 20.00 (SPSS Inc., Chicago, IL, USA) while an independent t-test, also, called Student's t-test was used to conduct the analysis. RESULTS The mean value of primary implant stability in Group A was found to be 74.5 as against that in Group B which was 62.08 (P-value 0.001). Likewise, the mean value of secondary implant stability in Group A after 4 months' interval was 70.92 while in Group B, it was found to be 63.69 (P-value 0.001). CONCLUSIONS The dental implants placed with the osseodensification technique showed higher mean primary and secondary implant stability values when compared to implants placed by the conventional technique.
Collapse
Affiliation(s)
- Kurian Punnoose
- Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Ha’il, Ha’il, Kingdom of Saudi Arabia
| | - Arun Kumar G
- Department of Prosthodontics and Crown and Bridge, Noorul Islam College of Dental Sciences, Thiruvananthapuram, Kerala, India
| | - Mahesh B
- Department of Prosthodontics and Crown and Bridge, Noorul Islam College of Dental Sciences, Thiruvananthapuram, Kerala, India
| | - Rajtilak Govindarajulu
- Department of Prosthodontics and Crown and Bridge, RVS Dental College and Hospital, Coimbatore, Tamil Nadu, India
| | - Amalorpavam V
- Department of Prosthodontics and Crown and Bridge, Rajas Dental College and Hospital, Kavalkinaru, Tirunelveli, Tamil Nadu, India
| | - Ebinu A
- Department of Prosthodontics and Crown and Bridge, Noorul Islam College of Dental Sciences, Thiruvananthapuram, Kerala, India
| | - Suresh Babu J
- Division of Periodontology, Department of Preventive Dental Sciences, College of Dentistry, University of Ha’il, Ha’il, Kingdom of Saudi Arabia
| | - Swarnalatha C
- Division of Periodontology, Department of Preventive Dental Sciences, College of Dentistry, University of Ha’il, Ha’il, Kingdom of Saudi Arabia
| | - Abhishek Singh Nayyar
- Department of Oral Medicine and Radiology, Saraswati Dhanwantari Dental College and Hospital and Post-Graduate Research Institute, Parbhani, Maharashtra, India,Address for correspondence: Dr. Abhishek Singh Nayyar, Department of Oral Medicine and Radiology, Saraswati-Dhanwantari Dental College and Hospital and Post-Graduate Research Institute, Parbhani, Maharashtra, India. E-mail:
| |
Collapse
|
8
|
Raz P, Meir H, Levartovsky S, Sebaoun A, Beitlitum I. Primary Implant Stability Analysis of Different Dental Implant Connections and Designs-An In Vitro Comparative Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3072. [PMID: 35591407 PMCID: PMC9104754 DOI: 10.3390/ma15093072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/23/2022] [Accepted: 04/21/2022] [Indexed: 02/05/2023]
Abstract
Primary implant stability can be evaluated at the time of placement by measuring the insertion torque (IT). However, another method to monitor implant stability over time is resonance frequency analysis (RFA). Our aim was to examine the effect of bone type, implant design, and implant length on implant primary stability as measured by IT and two RFA devices (Osstell and Penguin) in an in vitro model. Ninety-six implants were inserted by a surgical motor in an artificial bone material, resembling soft and dense bone. Two different implant designs-conical connection (CC) and internal hex (IH), with lengths of 13 and 8 mm, were compared. The results indicate that the primary stability as measured by RFA and IT is significantly increased by the quality of bone (dense bone), and implant length and design, where the influence of dense bone is similar to that of CC design. Both the Osstell and Penguin devices recorded higher primary implant stability for long implants in dense bone, favoring the CC over the IH implant design. The CC implant design may compensate for the low stability expected in soft bone, and dense bone may compensate for short implant length if required by the anatomical bone conditions.
Collapse
Affiliation(s)
- Perry Raz
- Department of Periodontology and Dental Implants, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (H.M.); (A.S.); (I.B.)
| | - Haya Meir
- Department of Periodontology and Dental Implants, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (H.M.); (A.S.); (I.B.)
| | - Shifra Levartovsky
- Department of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6139001, Israel;
| | - Alon Sebaoun
- Department of Periodontology and Dental Implants, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (H.M.); (A.S.); (I.B.)
| | - Ilan Beitlitum
- Department of Periodontology and Dental Implants, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6139001, Israel; (H.M.); (A.S.); (I.B.)
| |
Collapse
|
9
|
Nimmawitt P, Sittikornpaiboon P, Jaemsuwan S, Arunjaroensuk S, Wang JC, Hung CC, Kaboosaya B, Pimkhaokham A. The stability of tetracalcium phosphate/titanium implants: A short-term follow-up study. J Dent Sci 2022; 17:1030-1034. [PMID: 35756796 PMCID: PMC9201655 DOI: 10.1016/j.jds.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/03/2022] [Indexed: 11/17/2022] Open
Abstract
Background/purpose Materials and methods Results Conclusion
Collapse
Affiliation(s)
- Pawhat Nimmawitt
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Paknisa Sittikornpaiboon
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Svas Jaemsuwan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Sirida Arunjaroensuk
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Jen-Chyan Wang
- Department of Prosthodontics, Kaohsiung Medical University Hospital, School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Cheng Hung
- Department of Prosthodontics, Kaohsiung Medical University Hospital, School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Boosana Kaboosaya
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Atiphan Pimkhaokham
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Corresponding author. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, 34 Henri Dunant Road Wangmai, Patumwan, Bangkok, 10330, Thailand.
| |
Collapse
|
10
|
CARVALHO JPD, RAMOS UD, SOUSA LGD, VASCONCELOS PBD, MESSORA MR, PALIOTO DB, SOUZA SLSD. Effect of implant crestal position on primary stability before and after loading: an in vitro study. REVISTA DE ODONTOLOGIA DA UNESP 2022. [DOI: 10.1590/1807-2577.04722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract Introduction Primary stability is one of the goals of modern implant dentistry and if achieved, reduces treatment time for prosthetic rehabilitation and the number of interventions made in patients mouth. Several companies state as protocol for connical conection implants, a subcrestally positioning. Objective This in vitro study aimed to evaluate the effect of placing a conical connection implant equicrestally and subcrestally on static and loading condition in two types of bone density. Material and method A total of 200 bone cylinders were extracted from femur of pigs, standardized by means of x-rays and computerized microtomography scan (microCT) and separated in low and high density specimens. The implants were placed on the center of the bone cylinders and were evaluated before and after loading by means of microCT and histomorphometry. Result The results showed that placing the evaluated implant subcrestally provided better primary stability and performance on static and loading situations on low and high density bone. Conclusion Placing implant subcrestally improve primary stability outcomes under loading and static situations.
Collapse
|
11
|
Kim YY, Song YW, Kim MJ, Cha JK, Park JM, Kim JH, Jung UW. Immediate loading of fixed partial prostheses reconstructed using either tapered or straight implants in the posterior area: A randomized clinical trial. Clin Implant Dent Relat Res 2021; 23:703-715. [PMID: 34378853 DOI: 10.1111/cid.13039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/23/2021] [Accepted: 07/29/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND In immediately loaded implants within 72 h after the implant placement in the unilaterally and partially edentulous ridge, primary stability is considered critical, which can be influenced by the design of the implant fixture. PURPOSE To determine the outcomes at 1 year after the immediate loading of multiunit fixed partial prostheses over either tapered implants (TIs) or straight implants (SIs) in the posterior region. MATERIALS AND METHODS Forty-eight patients (24 patients, 52 implants in TI group; 24 patients, 50 implants in SI group) were included for the study. Except for the one SI group patient whose two implants showed the insertion torque less than 30 Ncm, provisional prostheses designed and fabricated from intraoral scan data obtained immediately after implant surgery were delivered to rest of the 47 subjects at 3-7 days. After a year, the survival rate was estimated by intention-to-treat (ITT) and per-protocol (PP) analyses, and marginal bone loss (MBL) and implant stability were also analyzed statistically (p < 0.05). RESULTS Survival rate at implant level in TI group was 96.2%, and that of SI group in the ITT analysis was 86.0%. Intergroup difference, however, was not statistically significant (p > 0.05). Insertion torque was significantly higher in TI group than SI group (47.12 ± 6.37 Ncm vs. 41.60 ± 9.77 Ncm; p < 0.05). MBLs of both groups were less than 0.1 mm at 1-year follow-up and was similar between two groups (p > 0.05). CONCLUSIONS Immediate loading of fixed partial prostheses after TI and SI placement showed reliable outcomes in the partially edentulous posterior ridge. In terms of the initial mechanical stability, the performance was superior for TIs than for SIs.
Collapse
Affiliation(s)
- Yoo-Yeon Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea.,Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Myong Ji Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ji-Man Park
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jee-Hwan Kim
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| |
Collapse
|
12
|
Can the Bone Density Estimated by CBCT Predict the Primary Stability of Dental Implants? A New Measurement Protocol. J Craniofac Surg 2021; 32:e171-e174. [PMID: 33705063 DOI: 10.1097/scs.0000000000006991] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The use of dental implants to restore edentulous parts of the jaws is a common and well-documented treatment method. Effective dental implant treatment is known to be affected by both the quality and the quantity of bone required for implant placement, bone quality is a critical factor to consider when predicting stability of implants. Thus, stability of the initial implant and the possibility of early loading could be predicated using cone-beam computed tomography (CBCT) scans and primary stability parameters before implant placement. OBJECTIVES The aim of this study was to objectively assess bone density obtained by CBCT and the correlations with primary stability of dental implants using implant stability meter IST device. METHODS A total of 40 implants were placed in 16 patients (9 males and 7 females with a range of 22 to 61 years (mean age 40.44 ± 12.3 years). The bone densities of implant recipient sites were preoperatively recorded using CBCT. The maximum insertion torque value of each implant was measured by engine during implant placement and compared to the primary stability for every implant using implant stability meter device (IST). RESULTS A statistically significant correlation was found between bone density value from CBCT with the primary implant stability and insertion torque. CONCLUSION Although the small samples size, the study shown bone density assessment using CBCT is an efficient method and significantly correlated with primary stability using implant stability meter device IST and insertion torque.
Collapse
|
13
|
Sayed AJ, Shaikh SS, Shaikh SY, Hussain MA, Tareen SUK, Awinashe V. Influence of Inter-Radicular Septal Bone Quantity in Primary Stability of Immediate Molar Implants with Different Length and Diameter Placed in Mandibular Region. A Cone-Beam Computed Tomography-Based Simulated Implant Study. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2021; 13:S484-S491. [PMID: 34447139 PMCID: PMC8375907 DOI: 10.4103/jpbs.jpbs_818_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 11/04/2022] Open
Abstract
AIM The purpose of this in vitro study was to investigate the influence of length and width of implant on primary stability in immediate implants in mandibular first molar. MATERIALS AND METHODS The study was carried out on 40 cone-beam computed tomography scans selected with defined inclusion and exclusion criteria. According to the diameter and length of implants, they were divided into nine groups (G1 to G9). The virtual implants of different diameters and length were placed in mandibular first molar and measurements were done for peri-implant horizontal and vertical gap defect, peri-implant interradicular bone support and apical bone support for all the groups. RESULTS The study groups Diameter, (D-7 mm) showed least horizontal gap defect (Buccal-1.30 ± 0.56 mm, lingual-1.30 ± 0.56 mm, mesial-1.20 ± 0.51 mm, and distal-1.05 ± 0.59 mm) as compared to regular implant diameter (D-4.7) groups (Buccal-2.35 ± 0.483 mm, lingual-2.10 mm ± 0.44 mm, mesial-2.30 ± 0.64 mm, and distal-2.25 ± 0.43 mm). The unsupported Vertical implant gap defect at the coronal part of the socket was 2.80 mm ± 0.83 mm for all groups in both horizontal and vertical direction. The vertical peri-implant interradicular bone support showed increased bone support with increase in implant length (L). The buccal and lingual inter-radicular bone-support was least for Length (L-8.5 mm), moderate for L-11.5 mm, and highest for L-13.5 mm groups, respectively. The mesial inter-radicular bone support was least for G4G7, moderate for G1G2G5G8, and maximum for G3G6G9 groups. Similarly, the distal inter-radicular bone support was least for G4G7, moderate for G1G5G8, and maximum for G2G3G6G9 groups, respectively. There was no apical bone support in L-8.5 mm group as the tip of implant was 3.5-4 mm within the socket tip. Whereas, L-11.5 mm had decent (0.9-1 mm) and L-13.5 mm had Good (1.35-1.95 mm) apical bone support as the implant tip was beyond the socket tip. CONCLUSION All the groups showed good interradicular bone support on buccal and lingual surfaces. Regular width implants with longer length showed satisfactory interradicular bone support on mesial and distal surfaces. Longer implants showed good apical bone support in all the four surfaces and hence good apical primary stability expected.
Collapse
Affiliation(s)
- Arshad Jamal Sayed
- Department of Preventive Dentistry, College of Dentistry in Alrass, Qassim University, Saudi Arabia
| | - Safia Shoeb Shaikh
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Qassim University, Saudi Arabia
| | - Shoeb Yakub Shaikh
- Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Saudi Arabia
| | | | | | - Vaibhav Awinashe
- Department of Prosthodontics. College of Dentistry in Alrass, Qassim University, Saudi Arabia
| |
Collapse
|
14
|
Pardo-Zamora G, Ortiz-Ruíz AJ, Camacho-Alonso F, Martínez-Marco JF, Molina-González JM, Piqué-Clusella N, Vicente-Hernández A. Short Dental Implants (≤8.5 mm) versus Standard Dental Implants (≥10 mm): A One-Year Post-Loading Prospective Observational Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18115683. [PMID: 34073250 PMCID: PMC8199359 DOI: 10.3390/ijerph18115683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 11/25/2022]
Abstract
Background: Recent data have shown that short dental implants can be the preferred treatment in most of cases of posterior atrophic alveolar ridges, offering higher survival and lower complication rates than long implants. The survival rates, stability, and marginal bone level changes were compared between short implants (7 and 8.5 mm) and standard-length implants (≥10 mm). Methods: Prospective observational study in which adult patients requiring ≥1 osseointegrated implants to replace missing teeth were recruited consecutively. A clinical examination was performed on the day the definitive prosthesis was placed and after 6 and 12 months. Implant stability quotient (ISQ), marginal bone level (MBL) changes, and the correlation between these parameters and the characteristics of the implants were evaluated. Results: A total of 99 implants were inserted (47 short, 52 standard) in 74 patients. The 12-month survival rate was 100%. ISQ values showed a similar pattern for both types of implants. No correlation was found between ISQ changes after one year and MBL values, nor between the latter and the characteristics of the implants. Conclusions: With clinical treatment criteria, shorter implants (7 and 8.5 mm in length) can be just as useful as standard-length implants in atrophic alveolar ridges, demonstrating similar rates of survival, stability, and crestal bone loss.
Collapse
Affiliation(s)
- Guillermo Pardo-Zamora
- Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain; (A.J.O.-R.); (F.C.-A.); (J.F.M.-M.); (J.M.M.-G.); (A.V.-H.)
- Correspondence: ; Tel.: +34-606-064-848
| | - Antonio José Ortiz-Ruíz
- Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain; (A.J.O.-R.); (F.C.-A.); (J.F.M.-M.); (J.M.M.-G.); (A.V.-H.)
| | - Fabio Camacho-Alonso
- Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain; (A.J.O.-R.); (F.C.-A.); (J.F.M.-M.); (J.M.M.-G.); (A.V.-H.)
| | - José Francisco Martínez-Marco
- Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain; (A.J.O.-R.); (F.C.-A.); (J.F.M.-M.); (J.M.M.-G.); (A.V.-H.)
| | - Juan Manuel Molina-González
- Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain; (A.J.O.-R.); (F.C.-A.); (J.F.M.-M.); (J.M.M.-G.); (A.V.-H.)
| | - Núria Piqué-Clusella
- Microbiology Section, Department of Biology, Healthcare and Environment, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona (UB), Av Joan XXIII, 27-31, 08028 Barcelona, Spain;
| | - Ascensión Vicente-Hernández
- Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain; (A.J.O.-R.); (F.C.-A.); (J.F.M.-M.); (J.M.M.-G.); (A.V.-H.)
| |
Collapse
|
15
|
Bozkaya S, Uraz A, Guler B, Kahraman SA, Turhan Bal B. The stability of implants and microbiological effects following photobiomodulation therapy with one-stage placement: A randomized, controlled, single-blinded, and split-mouth clinical study. Clin Implant Dent Relat Res 2021; 23:329-340. [PMID: 33851765 DOI: 10.1111/cid.12999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/25/2021] [Accepted: 04/01/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Studies have reported a positive effect on bone healing and the elimination of microorganisms placed on the titanium implants, while others have not confirmed the positive photobiomodulation therapy (PBMT) effects on bone regeneration and bone structure around the implants. PURPOSE The aim of the present study was to address the following questions: Does PBMT improve implant stability and affect microbiota around dental implants in the early stage of osseointegration? MATERIALS AND METHODS This study was designed as randomized-controlled prospective, split mouth, single-blinded clinical trial. Implants were randomly divided into two groups and implants placed in the test group were treated with Gallium-aluminum-arsenide (GaAlAs) diode laser with PBMT immediately after surgery and for 15 days (n = 47). In the control group, implants were not irradiated(n = 46). The primary stability of the implants was measured by the Resonance frequency analysis (RFA) after insertion and the secondary stability values were recorded at 30th, 60th, and 90th days after surgery as implant stability quotient (ISQ). The hand-held RFA was held perpendicular to the jaw line as indicated by the manufacturer for buccal-lingual (BL), mesial-distal (MD), and lingual-buccal (LB) measurement and different measurements were analyzed as separately. RESULTS Significantly higher magnetic RFA values were achieved on the 90th day in all measurement sides for both groups. ISQ levels in groups at baseline and the day-30, 60, and 90. ISQ readings were not statistically significant between test and control groups for each time point. A statistically significant increase in ISQ reading for BL, MD, and LB dimensions in both groups was noted from baseline to the day-90 (P < .05). CONCLUSION It was concluded that PBMT did not have a clinically significant effect on implant stabilization, especially in terms of ISQ values at early alveolar bone healing term. Clinical trial number is NCT04495335.
Collapse
Affiliation(s)
- Suleyman Bozkaya
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
| | - Ahu Uraz
- Faculty of Dentistry, Department of Periodontology, Gazi University, Ankara, Turkey
| | - Berceste Guler
- Faculty of Dentistry, Department of Periodontology, Kütahya Health Science University, Kütahya, Turkey
| | - Sevil Altundağ Kahraman
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
| | - Bilge Turhan Bal
- Faculty of Dentistry, Department of Prosthetic Restorative Dentistry, Gazi University, Ankara, Turkey
| |
Collapse
|
16
|
Badenes-Catalán J, Pallarés-Sabater A. Influence of Smoking on Dental Implant Osseointegration: A Radiofrequency Analysis of 194 Implants. J ORAL IMPLANTOL 2021; 47:110-117. [PMID: 32699886 DOI: 10.1563/aaid-joi-d-19-00223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Although many studies have related smoking to peri-implantitis and marginal bone loss, little is known of its potential impact on dental implant osseointegration. The present clinical study explores the influence of smoking on secondary stabilization based in radiofrequency analysis. A total of 194 implants in 114 patients were included. Implant stability was evaluated on the day of surgery and at a minimum of 90 days after implantation, when osseointegration is considered to have been completed. The evolution of implant stability was compared between 2 groups: smokers and nonsmokers. The following variables were also analyzed: implant brand and model, length, diameter, insertion torque, bone density according to the Misch classification, location of the implant, and patient age and gender. The results showed that smoking did not affect the primary stability of the implant, although it was associated with a marked decrease in secondary stability. The nonsmokers showed a gain of 2.69 points (95% confidence interval [CI]: 1.529-3.865; P < .001) in the osseointegration process. However, in the smokers group, implant stability was seen to decrease 0.91 points (95% CI: -3.424 to 1.600; P < .004), generating a difference of 3.61 points between smokers and nonsmokers. Smoking is thus concluded to be an important factor that must be taken into account when seeking good implant osseointegration outcomes.
Collapse
|
17
|
Atieh MA, Baqain ZH, Tawse-Smith A, Ma S, Almoselli M, Lin L, Alsabeeha NHM. The influence of insertion torque values on the failure and complication rates of dental implants: A systematic review and meta-analysis. Clin Implant Dent Relat Res 2021; 23:341-360. [PMID: 33764648 DOI: 10.1111/cid.12993] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND The influence of using different insertion torque values on clinical and radiographic outcomes of implant therapy is unclear in the current literature. The aim of this systematic review and meta-analysis was to evaluate the implant outcomes and complications rates using high insertion torque values compared with those using regular insertion torque value levels. METHODS Randomized controlled trials (RCTs), nonrandomized controlled clinical trials (NRCCTs), prospective and retrospective cohorts were searched for in electronic databases and complemented by hand searching relevant dental journals. The risk of bias was assessed using the Cochrane Collaboration's Risk of Bias tool for randomized and nonrandomized studies. Data were analyzed using a statistical software. RESULTS A total of 718 studies were identified, of which, nine studies were included with 1229 dental implants in 684 participants. The meta-analysis of RCTs showed that the overall implant failure rate was not notably in favor of any insertion torque value and the difference between the two groups was not statistically significant (risk ratio 0.85; 95% confidence interval 0.07-10.52; P = 0.90). None of the RCTs was registered. The secondary analyses of non-RCTs did not either show any statistically significant difference. Overall meta-analysis did not show any significant differences in peri-implant marginal bone loss or biological/technical complications between high (≥50 Ncm) and regular insertion torque (<50 Ncm). CONCLUSIONS There is insufficient evidence to support the use of high or regular insertion torque even with immediate implant restoration/loading. The short-term implant failure rates, changes in marginal bone level and complication rates were comparable when high or regular insertion torques were used for implant placement. The wide confidence interval indicated that results cannot be interpreted with clinically meaningful benefit for using either high or regular insertion torque.
Collapse
Affiliation(s)
- Momen A Atieh
- Chair of Oral Diagnostic and Surgical Sciences, Associate Professor of Periodontology, Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai, United Arab Emirates.,Honorary Associate Professor, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Zaid H Baqain
- Provost and Professor of Oral and Maxillofacial Surgery, Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine, Dubai Healthcare City, Dubai, United Arab Emirates
| | - Andrew Tawse-Smith
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Sunyoung Ma
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Mohamed Almoselli
- Mohammed Bin Rashid University of Medicine and Health Sciences, Hamdan Bin Mohammed College of Dental Medicine Dubai Healthcare City, Dubai, United Arab Emirates
| | - Lifeng Lin
- Department of Statistics, Florida State University, Tallahassee, Florida, USA
| | - Nabeel H M Alsabeeha
- Ras Al-Khaimah Dental Center, Ministry of Health and Prevention, Ras Al-Khaimah, United Arab Emirates
| |
Collapse
|
18
|
AKIN H, ÜNAL Y, YİLMAZER K. Effect of different crown removing procedures on the implant stability quotient and removal torque values of dental implants. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2021. [DOI: 10.33808/clinexphealthsci.789728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
19
|
A Radiographic and Clinical Comparison of Immediate vs. Early Loading (4 Weeks) of Implants with a New Thermo-Chemically Treated Surface: A Randomized Clinical Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031223. [PMID: 33572988 PMCID: PMC7908367 DOI: 10.3390/ijerph18031223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 01/26/2021] [Indexed: 01/18/2023]
Abstract
Background: Implant dentistry has evolved over time, resulting in better treatment outcomes for both patients and clinicians. The aim of this trial was to test whether the immediate loading of implants with a platform-switching design influences the marginal bone level, compared to four-week loading, after one year of follow-up. Moreover, a comparison of clinical data regarding implant survival, implant stability, and patient-reported outcome measures (PROMs) was conducted. Methods: Klockner® VEGA® implants with a ContacTi® surface were placed in partially edentulous patients in the posterior areas. Group A received an immediately loaded prosthesis (one week) and Group B received an early-loaded prosthesis (four weeks). All abutments were placed at the time of surgery. Radiographic and clinical data were recorded. Results: Twenty-one patients were treated (35 implants). No implants were lost during the study. The final marginal bone level did not show differences between groups. The bone loss at 12 months at the implant level was 0.00 mm for both groups (median). The final implant quotient stability (ISQ) values did not differ between groups (median 73 and 70.25), nor did the other clinical parameters or PROMs. Conclusions: The results suggest that neither of the loading protocols with the implants used influenced the marginal bone level—not the osseointegration rate, clinical conditions, or PROMs.
Collapse
|
20
|
Daher FI, Abi-Aad HL, Dimassi HI, Baba NZ, Majzoub ZA. Factors Affecting Implant Stability Quotients at Immediately and Conventionally Loaded Implants in the Posterior Maxilla: A Split-Mouth Randomized Controlled Trial. J Prosthodont 2021; 30:590-603. [PMID: 33215755 DOI: 10.1111/jopr.13296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2020] [Indexed: 02/06/2023] Open
Abstract
PURPOSE To assess primary and secondary stability of variable-thread tapered implants in the posterior maxilla and analyze the impact of various factors on implant stability quotients (ISQs). MATERIALS AND METHODS Twenty-six subjects received 3-4 adjacent implants in the maxillary premolar-molar sextants to replace bilateral tooth loss. The implants on one side were immediately loaded with a provisional fixed prosthesis regardless of their primary stability. The contralateral control implants were conventionally loaded. Bone quality was subjectively recorded and primary stability was assessed by means of insertion torque values (ITVs) and ISQs in 4 directions. Secondary stability was measured by ISQ at definitive prosthesis delivery (3-3.5 months postoperatively), and 12 months after definitive loading. The impact of measurement direction, loading protocol, time, site-related (bone quality, implant position, crestal buccal bone thickness, apical cortical anchorage), and implant-related (implant dimensions, abutment height) variables on ISQs was assessed. RESULTS For logistic reasons, ISQs were obtained for only 18 patients with 60 test and 60 control implants. Most of the implants (82%) at baseline had their lowest ISQ on the buccal aspect. There were no significant differences between ISQs measured in the buccal and palatal directions, or between ISQs in the mesial and distal directions. The mean of buccal and palatal ISQs was significantly lower than the mean of the 2 interproximal measurements at all evaluation periods. ISQs were not significantly different between the 2 loading groups at any time point. All implants showed a time-dependent increase in ISQs. Baseline ISQ correlated weakly with bone quality and ITV. None of the variables had a significant impact on baseline ISQs, except for implants in second molar sites which showed poorer primary stability than first premolars. CONCLUSION Measurement direction and time are the most significant parameters affecting ISQs of variable-thread tapered implants in the posterior maxilla.
Collapse
Affiliation(s)
- Fadi I Daher
- Department of Periodontics, Lebanese University, Faculty of Dental Medicine, Hadath, Lebanon
| | - Habib L Abi-Aad
- Department of Periodontics, Lebanese University, Faculty of Dental Medicine, Hadath, Lebanon
| | - Hani I Dimassi
- School of Pharmacy, Department of Pharmaceutical Sciences, Lebanese American University, Byblos, Lebanon
| | - Nadim Z Baba
- Advanced Dental Education Program in Implant Dentistry, Loma Linda University, School of Dentistry, Loma Linda, CA
| | - Zeina Ak Majzoub
- Department of Periodontics, Lebanese University, Faculty of Dental Medicine, Hadath, Lebanon
| |
Collapse
|
21
|
Kim JH, Lim YJ, Kim B, Lee J. How Do Parameters of Implant Primary Stability Correspond with CT-Evaluated Bone Quality in the Posterior Maxilla? A Correlation Analysis. MATERIALS 2021; 14:ma14020270. [PMID: 33430383 PMCID: PMC7828085 DOI: 10.3390/ma14020270] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
The aim of the present study was to evaluate correlations between bone density and implant primary stability, considering various determinants such as age, gender, and geometry of implants (design, diameter). Bone density of edentulous posterior maxillae was assessed by computed tomography (CT)-derived Hounsfield units, and implant primary stability values were measured with insertion torque and resonance frequency analysis (RFA). A total of 60 implants in 30 partially edentulous patients were evaluated in the posterior maxilla with two different types of dental implants. The bone density evaluated by CT-derived Hounsfield units showed a significant correlation with primary stability parameters. The bone quality was more influenced by gender rather than age, and the type of implant was insignificant when determining primary stability. Such results imply that primary stability parameters can be used for objective assessment of bone quality, allowing surgical modifications especially in sites suspected of poor bone quality.
Collapse
Affiliation(s)
- Ji-Hyun Kim
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Korea;
| | - Young-Jun Lim
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Korea;
- Correspondence: ; Tel.: +82-2-2072-2940
| | - Bongju Kim
- Dental Life Science Research Institute & Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Korea;
| | - Jungwon Lee
- Department of Periodontics, One-Stop Specialty Center, Seoul National University, Dental Hospital, Seoul 03080, Korea;
| |
Collapse
|
22
|
Can Bone Compaction Improve Primary Implant Stability? An In Vitro Comparative Study with Osseodensification Technique. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10238623] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background: This study aims to analyze bone compaction and osseodensification techniques and to investigate how cancellous bone compaction could influence primary implant stability (PS). Methods: Two different surgical protocols (bone compactors—BC; osseodensification drills—OD) were compared by placing 20 implants into 20 fresh pig ribs for each procedure. Peak insertion torque (PIT) and peak removal torque (PRT) were investigated using an MGT-12 digital torque gauge, and implant stability quotient (ISQ) was analyzed using an Osstell® Beacon device. Results: Analysis of our data (T-test p < 0.05) evidenced no statistically significant difference between BC and OD in terms of PIT (p = 0.33) or ISQ (p = 0.97). The comparison of PRT values showed a statistically significant difference between BC and OD protocols (p = 0.009). Conclusions: Cancellous bone compaction seems to improve PS, preserving a significant amount of bone and evenly spreading trabeculae on the entire implant site. While the PIT and ISQ values obtained are similar, the PRT values suggest different physical responses from the surrounding bone tissue. Nevertheless, a larger sample and further in vivo studies are necessary to validate the usefulness of BC protocol in several clinical settings.
Collapse
|
23
|
Guerrero-González M, Monticelli F, Saura García-Martín D, Herrero-Climent M, Ríos-Carrasco B, Ríos-Santos JV, Fernández-Palacín A. Reliability of the Resonance Frequency Analysis Values in New Prototype Transepithelial Abutments: A Prospective Clinical Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17186733. [PMID: 32947802 PMCID: PMC7559410 DOI: 10.3390/ijerph17186733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Resonance frequency analysis (RFA) requires abutment disconnection to monitor implant stability. To overcome this limitation, an experimental transepithelial abutment was designed to allow a SmartPeg to be screwed onto it, in order to determine the prototype abutments repeatability and reproducibility using Osstell ISQ and to assess whether implant length and diameter have an influence on the reliability of these measurements. RFA was conducted with a SmartPeg screwed directly into the implant and onto experimental abutments of different heights of 2, 3.5 and 5 mm. A total of 32 patients (116 implants) were tested. RFA measurements were taken twice for each group from mesial, distal, buccal and palatal/lingual surfaces. Mean values and SD were calculated and Intraclass Correlation Coefficients (ICC) (p < 0.05, IC 95%). The implant stability quotient (ISQ) mean values were 72.581 measured directly to implant and 72.899 (2 mm), 72.391 (3.5 mm) and 71.458 (5 mm) measured from the prototypes. ICC between measurements made directly to implant and through 2-, 3.5- and 5-mm abutments were 0.908, 0.919 and 0.939, respectively. RFA values registered through the experimental transepithelial abutments achieved a high reliability. Neither the implant length nor the diameter had any influence on the measurements' reliability.
Collapse
Affiliation(s)
- María Guerrero-González
- Periodontics, Faculty of Health and Sport Sciences, Universidad de Zaragoza, C/Velódromo S/N, 22006 Huesca, Spain; (M.G.-G.); (F.M.); (D.S.G.-M.)
| | - Francesca Monticelli
- Periodontics, Faculty of Health and Sport Sciences, Universidad de Zaragoza, C/Velódromo S/N, 22006 Huesca, Spain; (M.G.-G.); (F.M.); (D.S.G.-M.)
| | - David Saura García-Martín
- Periodontics, Faculty of Health and Sport Sciences, Universidad de Zaragoza, C/Velódromo S/N, 22006 Huesca, Spain; (M.G.-G.); (F.M.); (D.S.G.-M.)
| | | | - Blanca Ríos-Carrasco
- Advanced Periodontics, School of Dentistry, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain;
| | - José-Vicente Ríos-Santos
- Advanced Periodontics, School of Dentistry, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain;
| | - Ana Fernández-Palacín
- Department of Social and Health Sciences, Universidad de Sevilla, 41009 Sevilla, Spain;
| |
Collapse
|
24
|
H H, G W, E H. The clinical significance of implant stability quotient (ISQ) measurements: A literature review. J Oral Biol Craniofac Res 2020; 10:629-638. [PMID: 32983857 DOI: 10.1016/j.jobcr.2020.07.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/22/2020] [Accepted: 07/13/2020] [Indexed: 10/23/2022] Open
Abstract
Implant stability quotients (ISQ values) are obtained in dental clinical practice on a non-invasive basis by resonance frequency measurement rapidly after surgical placement of implants. The ISQ-values are used as indicator for mechanical implant stability, and are believed to have predictive power for clinical outcome. It is the aim of this review to provide a synopsis of all factors described in the literature that influence ISQ measurements by performing an exhaustive literature review; moreover, this review aims at elucidating the key factors relevant for a rapid clinical predictive assessment. We searched systematically and exhaustively all major databases for publications relating to ISQ measurement methodology and for ISQ-influencing factor analyses. The reports identified were ordered in experimental (preclinical) studies and in clinical publications. We were able to identify 13 basic factors influencing ISQ-measurements. Among these, local bone quality, playing a key role in such measurements, was subdivided in four specific subfactors; thus a total of 17 individual factors was identified and reported to influence ISQ-measurements. A comprehensive list of these factors is provided in Table-form. A critical analysis points out that only 6 of these factors are of a sound predictive power useful for a rapid clinical assessment; and only two of these factors appear to have a well-documented scientific basis.
Collapse
Affiliation(s)
- Huang H
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Gustav Mahlerlaan, 3004, 1081LA Amsterdam, Nord-Holland, the Netherlands.,Department of Osteoporosis, Inselspital Bern University Hospital, Freiburgstrasse 3, CH-3010, Bern, Switzerland
| | - Wu G
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Gustav Mahlerlaan, 3004, 1081LA Amsterdam, Nord-Holland, the Netherlands
| | - Hunziker E
- Department of Osteoporosis, Inselspital Bern University Hospital, Freiburgstrasse 3, CH-3010, Bern, Switzerland.,Departments of Osteoporosis and Orthopaedic Surgery, Inselspital Bern University Hospital, Freiburgstrasse 3, CH-3010, Bern, Switzerland
| |
Collapse
|
25
|
Morphological Evaluation of Bone by CT to Determine Primary Stability-Clinical Study. MATERIALS 2020; 13:ma13112605. [PMID: 32521622 PMCID: PMC7321591 DOI: 10.3390/ma13112605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 11/17/2022]
Abstract
Background: Primary stability is an important prognostic factor for dental implant therapy. In the present study, we evaluate the relationship between implant stability evaluation findings by the use of an implant stability quotient (ISQ), an index for primary stability, and a morphological evaluation of bone by preoperative computed tomography (CT). Subjects and methods: We analyzed 98 patients who underwent implant placement surgery in this retrospective study. For all 247 implants, the correlations of the ISQ value with cortical bone thickness, cortical bone CT value, cancellous bone CT value, insertion torque value, implant diameter, and implant length were examined. Results: 1. Factors affecting ISQ values in all cases: It was revealed that there were significant associations between the cortical bone thickness and cancellous bone CT values with ISQ by multiple regression analysis. 2. It was revealed that there was a significant correlation between cortical bone thickness and cancellous bone CT values with ISQ by multiple regression analysis in the upper jaw. 3. It was indicated that there was a significant association between cortical bone thickness and implant diameter with ISQ by multiple regression analysis in the lower jaw. Conclusion: We concluded that analysis of the correlation of the ISQ value with cortical bone thickness and values obtained in preoperative CT imaging were useful preoperative evaluations for obtaining implant stability.
Collapse
|
26
|
Is It Possible to Monitor Implant Stability on a Prosthetic Abutment? An In Vitro Resonance Frequency Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17114073. [PMID: 32521612 PMCID: PMC7313046 DOI: 10.3390/ijerph17114073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 11/17/2022]
Abstract
In order to apply the “one-abutment–one-time” concept, we evaluated the possibility of measuring resonance frequency analysis (RFA) on the abutment. This trial aimed to compare the Implant Stability Quotient (ISQ) values obtained by the PenguinRFA when screwing the transducer onto the implant or onto abutments with different heights and angulations. Eighty implants (VEGA®, Klockner Implant System, SOADCO, Les Escaldes, Andorra) were inserted into fresh bovine ribs. The groups were composed of 20 implants, 12 mm in length, with two diameters (3.5 and 4 mm). Five different abutments for screwed retained restorations (Permanent®) were placed as follows: straight with 1, 2, and 3 mm heights, and angulated at 18° with 2 and 3 mm heights. The mean value of the ISQ measured directly on the implant was 75.72 ± 4.37. The mean value of the ISQ registered over straight abutments was 79.5 ± 8.50, 76.12 ± 6.63, and 71.42 ± 6.86 for 1, 2, and 3 mm height abutments. The mean ISQ over angled abutments of 2 and 3 mm heights were 68.74 ± 4.68 and 64.51 ± 4.53 respectively. The present study demonstrates that, when the ISQ is registered over the straight abutments of 2 and 3 mm heights, the values decrease, and values are lower for angled, 3 mm height abutments.
Collapse
|
27
|
Arosio P, Arosio F, Di Stefano DA. Implant Diameter, Length, and the Insertion Torque/Depth Integral: A Study Using Polyurethane Foam Blocks. Dent J (Basel) 2020; 8:dj8020056. [PMID: 32512762 PMCID: PMC7345030 DOI: 10.3390/dj8020056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/21/2020] [Accepted: 05/29/2020] [Indexed: 12/12/2022] Open
Abstract
The amount of energy necessary to place an implant in its seat, described as the integral of the torque-depth curve at insertion (I), has been validated as a reliable measure of primary stability. This study aimed to investigate whether (I) may detect the variations in primary stability caused by changes in the implant length or diameter better than the insertion torque (IT). Cylindric implants featuring a double-etched, sandblasted surface with different diameters or lengths were placed into monolithic polyurethane foam blocks with different densities that mimicked human bone. (I)-, (I)*-, IT-, IT*-diameter and -length plots ((I)* and IT* were the derived values corrected for undersizing) were drawn and the relation between (I), (I)*, IT, and IT* and the fixture diameter or length was investigated with correlation analysis. (I)* and IT* correlated better than (I) and IT with the fixture diameter; (I), (I)*, IT, and IT* correlated equally well with the fixture length. In all cases, the slopes of the lines best fitting the experimental data were greater for (I) or (I)* than IT or IT*, respectively. (I) or (I)* were better detectors than IT or IT* of the changes in primary stability that can be achieved by increasing the fixture diameter or length.
Collapse
Affiliation(s)
- Paolo Arosio
- Private Practitioner, Vimercate, 20871 Monza-Brianza, Italy;
| | | | - Danilo Alessio Di Stefano
- Adjunct Professor, Dental School, Vita-Salute University IRCCS San Raffaele, 20132 Milan, Italy
- Private Practitioner, 20148 Milan, Italy
- Correspondence: ; Tel.: +39-02-48705703
| |
Collapse
|
28
|
Liu Y, Wang J, Chen F, Feng Y, Xie C, Li D. A reduced healing protocol for sinus floor elevation in a staged approach with deproteinized bovine bone mineral alone: A randomized controlled clinical trial of a 5-month healing in comparison to the 8-month healing. Clin Implant Dent Relat Res 2020; 22:281-291. [PMID: 32267601 DOI: 10.1111/cid.12906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/16/2020] [Accepted: 03/18/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE To investigate the feasibility of reducing the healing time of maxillary sinus floor elevation (MSFE) by a two-stage approach using deproteinized bovine bone mineral (DBBM) alone, based on clinical, histomorphometric, and microradiographic evaluations. MATERIALS AND METHODS Twenty consecutive cases with an atrophic posterior edentulous maxilla were randomly assigned to two groups at a ratio of 1:1. The lateral window approach to MSFE with DBBM alone was followed by an 8-month bone-healing period in the control group compared to 5 months in the test group. During implant placement, bone biopsies were harvested from implant osteotomy sites for micro-computed tomography (CT), histological, and histomorphometric evaluations. Cone beam CT (CBCT) scans were performed before and immediately after MSFE and after the bone-healing periods. The implant stability quotient (ISQ) was measured sequentially at implant placement and 1, 3, and 6 months thereafter. RESULTS The histomorphometric and microradiographic results showed no significant differences in new bone formation on the augmented sinus floor between the two groups (all Ps > .05), except that trabecular thickness was significantly reduced and trabecular separation significantly increased in the test group (both Ps < .05). The ISQs of both groups increased continuously after implant placement, but the difference was not significant between the groups at each time point. CBCT analyses showed that the extent of volumetric loss was comparable after bone healing for 5 and 8 months (P > .05). CONCLUSIONS Within the limitations of this study, the bone-healing time of MSFE with DBBM alone for staged implant placement could be reduced to 5 months instead of 8 or 9 months, based on the histomorphometric, microradiographic, and clinical outcomes; however, impact on long-term implant survival remains unknown and needs further investigation with long-term follow-ups.
Collapse
Affiliation(s)
- Yi Liu
- Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Jin Wang
- Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Fei Chen
- Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yuan Feng
- Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Chao Xie
- Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Dehua Li
- Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, Xi'an, China
| |
Collapse
|
29
|
Relationship between Implant Length and Implant Stability of Single-Implant Restorations: A 12-Month Follow-Up Clinical Study. ACTA ACUST UNITED AC 2020; 56:medicina56060263. [PMID: 32471305 PMCID: PMC7353855 DOI: 10.3390/medicina56060263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/19/2020] [Accepted: 05/26/2020] [Indexed: 11/16/2022]
Abstract
Background and Objectives: Implant stability in vivo is contingent on multiple factors, such as bone structure, instrument positioning and implant surface modifications, implant diameter, and implant length. Resonance-frequency analysis is considered a non-invasive, reliable, predictable, and objective method by which to evaluate implant stability, due to its correlation with bone-to-implant contact. The purpose of this study was to evaluate the effect of implant length on the primary and secondary stability of single-implant crown rehabilitations, as measured by resonance-frequency analysis at different times. Materials and Methods: Implants of 10 and 11.5 mm were placed, and the resonance frequency was measured at the time of surgery (T0), as well as at 3 (T1), 6 (T2), and 12 (T3) months post-surgery. Results: A total of 559 implants were placed in 195 patients. Significant differences were observed when comparing the implant stability quotient (ISQ) values at T1, with values for 10-mm implants being greater than those for 11.5-mm implants (p = 0.035). These differences were also observed when comparing ISQ values for buccal and lingual areas. At T0, T2, and T3, no significant differences in ISQ values were observed. The use of 10-mm implants in the anterior maxilla yielded significantly greater values at T0 (p = 0.018) and T1 (p = 0.031) when compared with 11.5-mm implants. Significant differences in measurements were observed only for buccal areas (p = 0.005; p = 0.018). When comparing the sample lengths and sex, women with 11.5-mm implants showed significantly lower results than those with 10-mm implants (p < 0.001). Conclusions: There is a direct relationship between implants of a smaller length and greater ISQ values, with this relationship being most evident in the maxilla and in women.
Collapse
|
30
|
Hindi AR, Bede SY. The effect of osseodensification on implant stability and bone density: A prospective observational study. J Clin Exp Dent 2020; 12:e474-e478. [PMID: 32509230 PMCID: PMC7263779 DOI: 10.4317/jced.56727] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 02/24/2020] [Indexed: 01/08/2023] Open
Abstract
Background The aims of this study were to evaluate the effect of implant site preparation in low-density bone using osseodensification method in terms of implant stability changes during the osseous healing period and peri-implant bone density using CBCT.
Material and Methods This prospective observational clinical study included 24 patients who received 46 dental implants that were installed in low-density bone using the osseodensification method. CBCT was used to measure the bone density pre- and postoperatively and implant stability was measured using Periotest® immediately after implant insertion and then after 6 weeks and 12 weeks postoperatively. The data were analyzed using paired t-test and the probability value <0.05 was considered statistically significant.
Results Of the 46 implants, 43 were osseointegrated making the early survival of the implants 93.5%. There was a significant increase in bone density postoperatively; 337.6 ±182.9 compared to 265.3 ±173.9 Hounsfield units preoperatively. The primary implant stability was -2.7 ± 2.13 Periotest values (PTV), at the 6th week it decreased significantly (p<0.0001) to become 0.7 (± 4) PTV, and at the 12th week (secondary stability) it increased significantly (p<0.0001) to become -2.1 (± 2.8) PTV. The difference between primary and secondary stability was statistically non-significant (p=0.0814).
Conclusions Osseodensification resulted in high primary stability and increased peri-implant bone density but it did not prevent the implant stability drop during the first 6 weeks after insertion of implants. Key words:Osseodensification, implant stability, low-density bone.
Collapse
Affiliation(s)
- Aseel R Hindi
- B.D.S. Department of Oral and Maxillofacial surgery, College of Dentistry, University of Baghdad Bab- Almoadham, Medical City, Baghdad, Iraq
| | - Salwan Y Bede
- B.D.S., F.I.B.M.S. Professor. Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Bagh-dad Bab- Almoadham, Medical City, Baghdad, Iraq
| |
Collapse
|
31
|
Jayaprakash PK, Basavanna JM, Thakur RPS, Kannan S, Singh NR, Kalra H. Comparison of stability changes of various palatal implants. J Family Med Prim Care 2020; 9:77-81. [PMID: 32110569 PMCID: PMC7014872 DOI: 10.4103/jfmpc.jfmpc_383_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 11/04/2022] Open
Abstract
Aim: The aim of this study was to comparatively evaluate stability changes in palatal implants during the early stages of bone healing with chemically modified sandblasted/acid-etched (modSLA) titanium surface compared with a standard sandblasted (SLA) titanium palatal implants. Materials and Methods: A statistically significant number (n = 40; 24 females and 16 males) of adult subjects who volunteered and have their informed consent for participating in the study were selected. These volunteers were randomly allocated to the experimental group (modSLA surface) and to the control group (SLA surface) with 20 subjects in each group. Documentation of implant stability was done by assessing resonance frequency analysis (RFA) at implant insertion, followed by subsequent assessments each week till 12th week from baseline (1–12 weeks). RFA values were expressed as an implant stability quotient (ISQ). Results: Immediately after installation of implant, the ISQ values for both surfaces tested were not significantly different and yielded mean values of 75.28 ± 5.23 for the control and 73.16 ± 4.81 for the test surface. In the first 2 weeks after implant installation, both groups presented only small changes and thereafter a reducing trend in the mean ISQ levels. In the test group, after 4 weeks a tendency toward increasing ISQ values was observed, and 6 weeks after surgery the ISQ values corresponded to those after implant insertion. For the SLA control group, the trend changed after fifth week and yielded ISQ values corresponding to the baseline after ninth week. After 12 weeks of observation, the test surface yielded significantly higher stability values of 78.68 ± 2.9 compared with the control implants of 75.5 ± 3.19, respectively. Conclusion: The results undoubtedly support and validate the potential for chemical modification of the SLA surface to positively influence the biologic process of osseointegration and also a faster healing.
Collapse
Affiliation(s)
- Poonam K Jayaprakash
- Department of Orthodontics and Dentofacial Orthopedics, Kothiwal Dental College and Research Center, Mora Mustaqueem, Moradabad, Uttar Pradesh, India
| | | | - Rudra Pratap Singh Thakur
- Department of Orthodontics and Dentofacial Orthopedics, Maitri College of Dentistry and Research Center, Anjora, Durg, Chattisgarh, India
| | - Sridhar Kannan
- Department of Orthodontics, Manav Rachna Dental College, Faridabad, Haryana, India
| | - Ningombam Robinson Singh
- Department of Orthodontics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Hiten Kalra
- Department of Orthodontics, School of Dental Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| |
Collapse
|
32
|
Gursoytrak B, Ataoglu H. Use of resonance frequency analysis to evaluate the effects of surface properties on the stability of different implants. Clin Oral Implants Res 2019; 31:239-245. [PMID: 31758589 DOI: 10.1111/clr.13560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 10/31/2019] [Accepted: 11/11/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVES We performed a randomized clinical study evaluating the stability of implants with different surfaces (alkali-modified or sandblasted) via resonance frequency analysis (RFA). MATERIALS AND METHODS Fourteen patients who were bilaterally edentulous in terms of their mandibular molars were enrolled. Implants with alkali-modified (bioactive) and sandblasted surfaces were randomly placed in either hemi-arch; the 50 implants used were identical in terms of diameter and length. RFA was used to measure the implant stability quotient (ISQ) immediately after placement (to assess primary stability) and 2, 6, and 12 weeks later. RESULTS The average RFA value for alkali-modified implants was significantly higher than that for sandblasted implants immediately after implantation, but the ISQs fell rapidly and were similar in the two groups at 2 and 6 weeks (p > .05); ISQ values were the same in the two groups at 3 months (p > .05). CONCLUSIONS Implants with alkali-modified surfaces were more stable than implants with sandblasted surfaces at all times after placement. The ISQs of bioactive implants exhibiting high-level primary stability fell to greater extents than did those of implants with sandblasted surfaces at 2 and 6 weeks postoperatively; both types of implant yielded similar clinical results at 12 weeks postoperatively.
Collapse
Affiliation(s)
- Burcu Gursoytrak
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Aydın Adnan Menderes University, Aydın, Turkey
| | - Hanife Ataoglu
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Medipol University, Istanbul, Turkey
| |
Collapse
|
33
|
Herrero‐Climent M, Falcão A, López‐Jarana P, Díaz‐Castro CM, Ríos‐Carrasco B, Ríos‐Santos JV. In vitro comparative analysis of two resonance frequency measurement devices: Osstell implant stability coefficient and Penguin resonance frequency analysis. Clin Implant Dent Relat Res 2019; 21:1124-1131. [DOI: 10.1111/cid.12868] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/18/2019] [Accepted: 10/23/2019] [Indexed: 02/06/2023]
Affiliation(s)
| | - Artur Falcão
- Faculty of Dentistry Oporto University (FMDUP) Porto Portugal
| | | | - Carmen M. Díaz‐Castro
- Master's Program of Periodontology and Implant Dentistry from the University of Seville Seville Spain
| | - Blanca Ríos‐Carrasco
- Master's Program of Periodontology and Implant Dentistry from the University of Seville Seville Spain
| | - José Vicente Ríos‐Santos
- Department of Periodontics and Implant Dentistry, Periodontics and Implant DentistryDental School University of Seville Seville Spain
| |
Collapse
|
34
|
Effect of Platelet-Rich Fibrin and Bone Morphogenetic Protein on Dental Implant Stability. J Craniofac Surg 2019; 30:1492-1496. [PMID: 31299751 DOI: 10.1097/scs.0000000000005131] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) and platelet-rich fibrin (PRF) bioactive materials have been used to enhance healing and improve dental implant stability. This study aimed to compare the effect of rhBMP-2 and PRF bioactive materials on dental implant stability at different intervals and to evaluate the correlation of implant length and diameter with implant stability.Two bioactive materials were compared to evaluate their effect on dental implant stability. A total of 32 patients (102 dental implants) were divided into 3 groups: 24 dental implants with bone morphogenetic protein (BMP), 27 dental implants with PRF, and 51 dental implants without BMP or PRF (control group). Data were statistically analyzed to determine the bioactive material with the best effect on implant stability.Implant stability did not significantly differ between the groups immediately after implant insertion (first reading; P > 0.05). The implant stability of the rhBMP-2 group was significantly better than those of the PRF and control groups 6 weeks after implant insertion (second reading; P = 0.001). After 12 weeks, the effect of rhBMP-2 on implant stability was highly significant and better than that of the other groups (third reading; P < 0.001).Dental implants coated with BMP have a better effect on stability than those with PRF alone and those without PRF or BMP.
Collapse
|
35
|
Eshkol‐Yogev I, Tandlich M, Shapira L. Effect of implant neck design on primary and secondary implant stability in the posterior maxilla: A prospective randomized controlled study. Clin Oral Implants Res 2019; 30:1220-1228. [DOI: 10.1111/clr.13535] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 08/07/2019] [Accepted: 09/04/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Inbar Eshkol‐Yogev
- Department of Periodontology The Hebrew University ‐ Hadassah Faculty of Dental Medicine Jerusalem Israel
| | - Moshik Tandlich
- Department of Periodontology The Hebrew University ‐ Hadassah Faculty of Dental Medicine Jerusalem Israel
| | - Lior Shapira
- Department of Periodontology The Hebrew University ‐ Hadassah Faculty of Dental Medicine Jerusalem Israel
| |
Collapse
|
36
|
Influence of Mucosal Thickness, Implant Dimensions and Stability in Cone Morse Implant Installed at Subcrestal Bone Level on the Peri-Implant Bone: A Prospective Clinical and Radiographic Study. Symmetry (Basel) 2019. [DOI: 10.3390/sym11091138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The objective of this observational clinical study was to analyze the behavior of peri-implant tissues around cone Morse dental implants installed in the subcrestal bone position considering different clinical variables: Mucosal thickness, implant diameter, and implant length. Thirty patients were selected and included in the present study. Initially the thickness of the mucosa was measured by periapical radiographic and clinically (after the mucosal displaced). According to the planning for each treatment, implants with different dimensions (in length and diameter) were selected and used. Periapical radiographs were obtained at different times: Immediate postoperative (time t1) and 90 days after implantation (time t2). The initial stability of the implants (ISQ) was measured immediately of the implant insertion and 90 days after. The means and standard deviations of the ISQ values were in time t1 was 63.2 ± 6.99 (95% confidence interval (CI): 41 to 83) and in time t2 was 69.7 ± 7.09 (95% CI: 61 to 87). Overall mean of mesial and distal bone loss 90 days after the implantations were 1.11 ± 1.16 mm and 1.11 ± 1.15 mm, respectively. When the variables were considered, in all situations proposed, the bone loss showed differences statistically significant. In conclusion, the implant diameter and mucosal thickness variables showed an important effect on bone loss values. However, the implant length did not show an effect on the peri-implant behavior.
Collapse
|
37
|
Aragoneses JM, Suárez A, Brugal VA, Gómez M. Frequency Values and Their Relationship With the Diameter of Dental Implants. Prospective Study of 559 Implants. IMPLANT DENT 2019; 28:279-288. [DOI: 10.1097/id.0000000000000887] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
38
|
Kriging Surrogate Model for Resonance Frequency Analysis of Dental Implants by a Latin Hypercube-Based Finite Element Method. Appl Bionics Biomech 2019; 2019:3768695. [PMID: 31093299 PMCID: PMC6481145 DOI: 10.1155/2019/3768695] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/03/2019] [Accepted: 03/13/2019] [Indexed: 11/18/2022] Open
Abstract
The dental implantation in clinical operations often encounters difficulties and challenges of failure in osseointegration, bone formulation, and remodeling. The resonance frequency (RF) can effectively describe the stability of the implant in physical experiments or numerical simulations. However, the exact relationship between the design variables of dental implants and RF of the system is correlated, complicated, and dependent. In this study, an appropriate mathematical model is proposed to evaluate and predict the implant stability and performance. The model has merits not only in the prediction reliability and accuracy but also in the compatibility and flexibility, in both experimental data and numerical simulation results. The Kriging surrogate model is proposed to present the numerical relationship between RF and material parameters of dental implants. The Latin Hypercube (LH) sampling method as a competent and sophisticated method is applied and combined with the finite element method (FEM). The methods developed in this paper provide helpful guidance for designers and researchers in the implantation design and surgical plans.
Collapse
|
39
|
Yim HJ, Lim HC, Hong JY, Shin SI, Chung JH, Herr Y, Shin SY. Primary stability of implants with peri-implant bone defects of various widths: an in vitro investigation. J Periodontal Implant Sci 2019; 49:39-46. [PMID: 30847255 PMCID: PMC6399088 DOI: 10.5051/jpis.2019.49.1.39] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 02/18/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose This study aimed to evaluate the effects of i) the extent of peri-implant bone defects and ii) the application of bone cement on implant stability with respect to the measurement direction. Methods In 10 bovine rib bones, 4 implant osteotomies with peri-implant bone defects of various widths were prepared: i) no defect (D0), ii) a 2-mm-wide defect (D2), iii) a 4-mm-wide defect (D4), and iv) a 8-mm-wide defect (D8). The height of all defects was 10 mm. Implant stability quotient (ISQ) values and Periotest values (PTVs) were measured after implant placement and bone cement application. Results With increasing defect width, decreased ISQs and increased PTVs were observed. Statistically significant differences were found between groups D0 and D8, D0 and D4, and D2 and D8. Prior to bone cement application, inconsistent PTVs were found in group D8 depending on the measurement direction. Bone cement increased the implant stability. Conclusion Peri-implant bone deficits measuring around 50% of the implant surface compromised implant stability. Clinically, PTVs should be cautiously interpreted in implants with large peri-implant defects due to inconsistent recordings with respect to the measurement direction.
Collapse
Affiliation(s)
- Hyun-Jin Yim
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Hyun-Chang Lim
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Ji-Youn Hong
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Seung-Il Shin
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Jong-Hyuk Chung
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Yeek Herr
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Seung-Yun Shin
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, Kyung Hee University School of Dentistry, Seoul, Korea
| |
Collapse
|
40
|
Andersson P, Pagliani L, Verrocchi D, Volpe S, Sahlin H, Sennerby L. Factors Influencing Resonance Frequency Analysis (RFA) Measurements and 5-Year Survival of Neoss Dental Implants. Int J Dent 2019; 2019:3209872. [PMID: 31065267 PMCID: PMC6466959 DOI: 10.1155/2019/3209872] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/11/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Diagnostic instruments based on resonance frequency analysis (RFA) can be utilised to assess dental implant stability during treatment and follow-up. AIM The aim of the present study was to investigate the influence of patient- and implant-related factors on implant stability and the 5-year implant survival. In addition, the influence of stability (ISQ value) at placement and abutment connection on implant survival was evaluated. MATERIALS AND METHODS RFA measurements from a total of 334 consecutive patients with 745 dental implants (Neoss Ltd., Harrogate, UK) were retrospectively analysed after at least 5 years in function. Statistics were used to evaluate the influence of the different variables on implant stability and implant survival. Odds ratio calculations were performed to compare the risk for implant failure using 60, 65, 70, and 75 ISQ as threshold levels at placement and loading. RESULTS A total of 20 implant failures in 14 patients were noted during the 5 years of follow-up, giving an overall cumulative survival rate (CSR) of 97.3% at the implant level and 95.8% at the patient level. Gender, jaw, position, bone quality, and implant diameter had an influence on implant stability at placement. Jaw, bone quality, and implant diameter had an influence on stability after 3-4 months of healing. More failures were observed in full than in partial rehabilitations. Age, gender, jaw, position, bone quantity, bone quality, implant diameter, and implant length had no influence on implant survival. Implants with ISQ values below the threshold levels showed lower survival rates compared to implants with values above these levels. CONCLUSIONS The present study showed a significantly higher risk for implant failure, showing an ISQ value below 70 and 75 at placement or after 3-4 months of healing. The results indicate that RFA measurements can be used to identify implants with increased risk for failure.
Collapse
Affiliation(s)
- Peter Andersson
- 1Private Practice, Clinica Feltre, Viale 14 Agosto 1866, No. 31, 32032 Feltre, Italy
| | - Luca Pagliani
- 2Private Practice, Via Giuseppe Mercalli 11, Milano, Italy
| | - Damiano Verrocchi
- 3Private Practice, Via Angelo Guadagnini 21, 38054 Fiera Di Primiero, Italy
| | - Stefano Volpe
- 4Private Practice, Piazza del Fante 10, 00195 Rome, Italy
| | - Herman Sahlin
- 5Neoss AB, Arvid Wallgrens Backe 20, 413 46 Gothenburg, Sweden
| | - Lars Sennerby
- 6Department of Oral & Maxillofacial Surgery, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, P.O. Box 450, 405 30 Gothenburg, Sweden
| |
Collapse
|
41
|
Tanaka K, Sailer I, Iwama R, Yamauchi K, Nogami S, Yoda N, Takahashi T. Relationship between cortical bone thickness and implant stability at the time of surgery and secondary stability after osseointegration measured using resonance frequency analysis. J Periodontal Implant Sci 2018; 48:360-372. [PMID: 30619637 PMCID: PMC6312875 DOI: 10.5051/jpis.2018.48.6.360] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/22/2018] [Indexed: 11/18/2022] Open
Abstract
Purpose It has been suggested that resonance frequency analysis (RFA) can measure changes in the stability of dental implants during osseointegration. This retrospective study aimed to evaluate dental implant stability at the time of surgery (primary stability; PS) and secondary stability (SS) after ossseointegration using RFA, and to investigate the relationship between implant stability and cortical bone thickness. Methods In total, 113 patients who attended the Tohoku University Hospital Dental Implant Center were included in this study. A total of 229 implants were placed in either the mandibular region (n=118) or the maxilla region (n=111), with bone augmentation procedures used in some cases. RFA was performed in 3 directions, and the lowest value was recorded. The preoperative thickness of cortical bone at the site of implant insertion was measured digitally using computed tomography, excluding cases of bone grafts and immediate implant placements. Results The mean implant stability quotient (ISQ) was 69.34±9.43 for PS and 75.99±6.23 for SS. The mandibular group had significantly higher mean ISQ values than the maxillary group for both PS and SS (P<0.01). A significant difference was found in the mean ISQ values for PS between 1-stage and 2-stage surgery (P<0.5). The mean ISQ values in the non-augmentation group were higher than in the augmentation group for both PS and SS (P<0.01). A weak positive correlation was observed between cortical bone thickness and implant stability for both PS and SS in all cases (P<0.01). Conclusions Based on the present study, the ISQ may be affected by implant position site, the use of a bone graft, and cortical bone thickness before implant therapy.
Collapse
Affiliation(s)
- Kenko Tanaka
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Division of Fixed Prosthodontics and Biomaterials, University Clinic, Dental Medicine University of Geneva, Geneva, Switzerland.,Dental Implant Center, Tohoku University Hospital, Sendai, Japan
| | - Irena Sailer
- Division of Fixed Prosthodontics and Biomaterials, University Clinic, Dental Medicine University of Geneva, Geneva, Switzerland
| | - Ryosuke Iwama
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kensuke Yamauchi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Dental Implant Center, Tohoku University Hospital, Sendai, Japan
| | - Shinnosuke Nogami
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Nobuhiro Yoda
- Dental Implant Center, Tohoku University Hospital, Sendai, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Dental Implant Center, Tohoku University Hospital, Sendai, Japan
| |
Collapse
|
42
|
Almutairi AS, Walid MA, Alkhodary MA. The effect of osseodensification and different thread designs on the dental implant primary stability. F1000Res 2018; 7:1898. [PMID: 31131085 PMCID: PMC6518436 DOI: 10.12688/f1000research.17292.1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/30/2018] [Indexed: 11/25/2022] Open
Abstract
Background: It is difficult to achieve good primary stability of dental implants in soft bone, such as that in the posterior maxillae. Osseodensification (OD) burs, working in a non-subtractive fashion, condense the implant osteotomy bone in lateral direction and increase in the bone implant contact. Also, dental implants with deeper threads, and decreased thread pitch can increase initial bone implant anchorage. Methods: This study utilized 48 custom-made machined surface dental implants that were 13 mm long, with a major diameter of 4.5 mm and a minor diameter of 3.5 mm, a thread pitch of 1 mm, a thread depth of 0.5 mm, and a 4 mm long cutting flute at the apex. The implants were divided into 4 groups, each group was made of 12 implants with a different thread design; V-shaped, trapezoid, buttress, and reverse buttress. The implants were inserted in 4-mm thick cancellous bone slices obtained from the head of Cow femur bone. The ostoetomies were prepared by conventional drilling and by OD drilling. Each inserted implant was then tested for primary stability using the Periotest. The Periotest values (PTVs) for the implant stability were tabulated and analyzed using a chi square test at significance level p< 0.05. Results: The results of this this study revealed no statistically significant difference between the Periotest readings for the implants in each category placed in either the OD or the regular osteotomies. However, it has been found that the implants placed in regular drilling ostoetomies had a significantly better primary stability than the implants placed in OD osteotomies. Conclusions: It was concluded that OD is not necessary in situations where there is bone of good quality and quantity.
Collapse
Affiliation(s)
- Abdullah Saleh Almutairi
- Department of Periodontology, College of Dentistry, Qassim University, Buraidah, Qassim, 51452, Saudi Arabia
| | - Maher Abdullatif Walid
- Department of Periodontology, College of Dentistry, Qassim University, Buraidah, Qassim, 51452, Saudi Arabia
| | - Mohamed Ahmed Alkhodary
- Department of Prosthetic Dental Science, College of Dentistry, Qassim University, Buraidah, Qassim, 51452, Saudi Arabia.,Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| |
Collapse
|
43
|
|
44
|
The Effect of Smoking Behavior on Alveolar Bone Marrow Mesenchymal Stem Cells of Clinical Implant Patient. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7672695. [PMID: 30584539 PMCID: PMC6280244 DOI: 10.1155/2018/7672695] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 11/05/2018] [Indexed: 12/01/2022]
Abstract
Objective The hazardous effects of smoking on the alveolar bone healing after implant surgery and nicotine on the biofunction of human alveolar bone marrow mesenchymal stem cells (hABMMSCs) were reported. There was little direct evidence regarding the specific detrimental effects of the smoking on hABMMSCs. The aim of this study was to test the influence of smoking behavior on hABMMSCs and the osseointegration situation after implant surgery. Methods hABMMSCs from 6 dental implant patients randomly (3 smokers and 3 nonsmokers) were compared. The cell viability, colony forming unit, and cell cycle were performed to assay proliferation capacity. The Oil Red O staining, Alizarin Red staining, alkaline phosphatase staining and activity, adipogenic and osteogenic gene expressions in vitro, and bone formation ectopically in vivo were performed under proper inductions, respectively, to assay multilineage differentiation. Besides the implant stability quotient and marginal bone loss were checked in both groups. Results Smoking hABMMSCs showed lower proliferation in vitro and poorer bone regeneration capacity in vivo. Moreover, smokers performed worse on bone healing after implant surgery. Conclusions Our results suggested smoking had the detrimental genetic effect on proliferation and osteogenesis of hABMMSCs and the decreased biofunction of hABMMSCs was positively related with bone healing. Clinical Significance The present study provided direct evidence about hazardous effects of smoking behavior on hABMMSCs. Smoking decreased the osteogenesis and proliferation of hABMMSCs in vivo and in vitro, and smoking was positively related with osseointegration reduction. Prevention of smoking behavior may promote biofunction of hABMMSCs and successful rate of dental implant.
Collapse
|
45
|
Juboori MJA, Attas MAA, Gomes RZ, Alanbari BF. Using Resonance Frequency Analysis to Compare Delayed and Immediate Progressive Loading for Implants Placed in the Posterior Maxilla: A Pilot Study. Open Dent J 2018; 12:801-810. [PMID: 30450138 PMCID: PMC6198410 DOI: 10.2174/1745017901814010801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 09/05/2018] [Accepted: 09/25/2018] [Indexed: 11/24/2022] Open
Abstract
Objective: Implants placed in the posterior region of the maxilla have a high incidence of implant failure due to poor bone quality, especially when immediate implant loading is needed. Immediate Progressive Loading (IPL) can enhance bone quality and may offer an alternative solution when Immediate Implant loading is needed. Methods: Six patients (one male and five females; 34-62 years old) were included in this study. Twelve implants were inserted in the posterior region of the maxilla. Resonance Frequency Analysis (RFA) was performed at the time of implant placement and after 1, 2, 3 and 6 months. ISQ (Implant Stability Quotient) values were compared between the Delayed Loading (DL) group after 2 months and the Progressive Loading (PL) group and between different time points for each group. Results: At implant placement, the mean ISQ values for PL and DL implants were 63 and 57, respectively. One month after implant placement, the mean ISQ value for PL implants was 73. Two months after implant placement, the mean ISQ value for PL implants was 75. Three months after implant placement, the mean ISQ values for PL and DL implants were 76 and 69, respectively. Six months after implant placement, the mean ISQ values for PL and DL implants were 79 and 76, respectively. Conclusion: Despite its limitations, this pilot study indicated that compared to DL, PL can enhance bone density and implant stability, resulting in greater early functionality and fewer surgery sessions.
Collapse
Affiliation(s)
| | - Mohammed Ahmed Al Attas
- Department of Prosthodontic and Dental Implant, Riyadh Dental Center, King Saud Medical City, Riyadh, Saudi Arabia
| | - Raquel Zita Gomes
- Department of Oral Surgery, Faculty of Dental Medicine, University of Porto, Porto, Portugal
| | | |
Collapse
|
46
|
Gangwar S, Pal US, Singh S, Singh RK, Singh V, Kumar L. Immediately placed dental implants in smokers with plasma rich in growth factor versus without plasma rich in growth factor: A comparison. Natl J Maxillofac Surg 2018; 9:39-47. [PMID: 29937657 PMCID: PMC5996649 DOI: 10.4103/njms.njms_74_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Introduction: The placement of implants into fresh extraction sockets was introduced in 1970. This approach has been reviewed extensively during the past decade. Immediate postextraction implant placement is a well-accepted protocol. The concept of placement of dental implants soon after the removal of a tooth in smokers, however, is still a matter of controversy. Purpose: (i) To access failure rate of dental implant in smokers (ii) To evaluate added advantage of plasma rich in growth factors (PRGFs) in immediate placement of dental implants in smokers. Materials and Methods: The sample of 30 patients was obtained from the different Outpatient Department of Faculty of Dental Sciences; King George's Medical University, Lucknow, who had visited for rehabilitation of missing teeth by implants between April 2013 and July 2015. They were randomly divided into two groups (without use of PRGF and with use of PRGF) of 15 each. Pre- and postoperative assessment included a thorough history and clinical examination, regression of pain and swelling, implant stability by resonance frequency analysis (RFA), and implant stability according to the bone type as well as radiographic interpretation for measurement of bone loss on the mesial and distal surfaces of the implant. Results: In this study, pain and swelling were significantly (P < 0.05) higher in Group A than in Group B across the time interval. RFA score for implant stability was lower in Group A across the period than Group B. At the end of 3 months, RFA score (mean) in Group A was having 72.55 ISQ value, and in Group B, it was 75.71 ISQ value. In this study, postoperative crestal bone loss was more in patients in Group A as compared to patients in Group B. There was significant difference in mesial (P = 0.003) and distal (P = 0.001) crestal bone loss at 6 months between the groups. Conclusion: The immediate placement of dental implants in smokers with use of PRGF is shown to be efficient in relation to postoperative pain and swelling, stability, stability according to bone type, as well as bone loss.
Collapse
Affiliation(s)
- Shilpi Gangwar
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - U S Pal
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Sunita Singh
- Department of Microbiology, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - R K Singh
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Vibha Singh
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Lakshya Kumar
- Department of Prosthodontics and Dental Materials, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| |
Collapse
|
47
|
Oliveira PGFPD, Bergamo ETP, Neiva R, Bonfante EA, Witek L, Tovar N, Coelho PG. Osseodensification outperforms conventional implant subtractive instrumentation: A study in sheep. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:300-307. [PMID: 29853095 DOI: 10.1016/j.msec.2018.04.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/12/2017] [Accepted: 04/17/2018] [Indexed: 01/02/2023]
Affiliation(s)
| | - Edmara T P Bergamo
- Department of Biomaterials and Biomimetics, New York University, 433 1st Avenue, New York, NY 10010, USA.
| | - Rodrigo Neiva
- Department of Periodontology, University of Florida, 1395 Center Drive, D1-11, Gainesville, FL 32610, USA.
| | - Estevam A Bonfante
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Al. Otávio Pinheiro Brisola 9-75, Bauru, SP 17.012-901, Brazil.
| | - Lukasz Witek
- Department of Biomaterials and Biomimetics, New York University, 433 1st Avenue, New York, NY 10010, USA.
| | - Nick Tovar
- Department of Biomaterials and Biomimetics, New York University, 433 1st Avenue, New York, NY 10010, USA.
| | - Paulo G Coelho
- Department of Biomaterials and Biomimetics, New York University, 433 1st Avenue, New York, NY 10010, USA; Hansjörg Wyss Department of Plastic Surgery, NYU Langone Medical Center, 550 First Avenue, New York 10016, NY, USA; Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, 6 MetroTech Center, New York, NY 11201, USA.
| |
Collapse
|
48
|
Chatvaratthana K, Thaworanunta S, Seriwatanachai D, Wongsirichat N. Correlation between the thickness of the crestal and buccolingual cortical bone at varying depths and implant stability quotients. PLoS One 2017; 12:e0190293. [PMID: 29281715 PMCID: PMC5745001 DOI: 10.1371/journal.pone.0190293] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 12/10/2017] [Indexed: 12/04/2022] Open
Abstract
Background/purpose Resonance frequency analysis (RFA) is clinically used in dentistry to access the stiffness of dental implants in surrounding bone. However, the clear advantages and disadvantages of this method are still inconclusive. The aim of this study was to investigate and compare implant stability quotient (ISQ) values obtained from RFA with parameters obtained from a cone beam computed tomography (CBCT) scan of the same region. Materials and methods Nineteen implants (Conelog) were inserted in the posterior maxillary and mandibular partially edentulous regions of 16 patients. At the time of implant placement, the ISQ values were obtained using RFA (Osstell). CBCT was used to measure the thickness of the crestal, cortical, buccolingual cortical, and cancellous bone at 3, 6, and 9 mm below the crestal bone level, as indicated by radiographic markers. The ratio of the thickness of the cortical to cancellous bone at varying depths was also calculated and classified into 4 groups (Group 1–4). Results There was a strong correlation between the crestal cortical bone thickness and ISQ values (P<0.001). The thickness of the buccolingual cortical bone and ratio of the cortical to cancellous bone thickness at 3 mm were significantly related to the ISQ (P = 0.018 and P = 0.034, respectively). Furthermore, the ISQs in Group 1 were the highest compared with those in Group 2 and Group 3, whereas the CBCT parameters at 6 and 9 mm did not have any specific correlation with the ISQ values. Conclusion This study showed that the ISQ values obtained from RFA highly correlated with the quantity and quality of bone 3 mm below the crestal bone level. The correlation between the ISQ and bone surrounding the implant site was dependent on the depth of measurement. Therefore, RFA can help to predict the marginal bone level, as confirmed in this study.
Collapse
Affiliation(s)
| | - Sita Thaworanunta
- Department of Maxillofacial Prosthodontic, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Dutmanee Seriwatanachai
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
- * E-mail:
| | - Natthamet Wongsirichat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, Thailand
| |
Collapse
|
49
|
Hou PJ, Ou KL, Wang CC, Huang CF, Ruslin M, Sugiatno E, Yang TS, Chou HH. Hybrid micro/nanostructural surface offering improved stress distribution and enhanced osseointegration properties of the biomedical titanium implant. J Mech Behav Biomed Mater 2017; 79:173-180. [PMID: 29306080 DOI: 10.1016/j.jmbbm.2017.11.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 11/09/2017] [Accepted: 11/25/2017] [Indexed: 01/24/2023]
Abstract
OBJECTIVES The aim of the present study was to investigate the surface characteristic, biomechanical behavior, hemocompatibility, bone tissue response and osseointegration of the optimal micro-arc oxidation surface-treated titanium (MST-Ti) dental implant. MATERIALS AND METHODS The surface characteristic, biomechanical behavior and hemocompatibility of the MST-Ti dental implant were performed using scanning electron microscope, finite element method, blood dripping and immersion tests. The mini-pig model was utilized to evaluate the bone tissue response and osseointegration of the MST-Ti dental implant in vivo. Data were analyzed by analysis of variance using the Student's t-test (P ≤ 0.05). RESULTS The hybrid volcano-like micro/nanoporous structure was formed on the surface of the MST-Ti dental implant. The hybrid volcano-like micro/nanoporous surface played an important role to improve the stress transfer between fixture, cortical bone and cancellous bone for the MST-Ti dental implant. Moreover, the MST-Ti implant was considered to have the outstanding hemocompatibility. In vivo testing results showed that the bone-to-implant contact (BIC) ratio significantly altered as the implant with micro/nanoporous surface. After 12 weeks of implantation, the MST-Ti dental implant group exhibited significantly higher BIC ratio than the untreated dental implant group. In addition, the MST-Ti dental implant group also presented an enhancing osseointegration, particularly in the early stages of bone healing. CONCLUSION It can be concluded that the micro-arc oxidation approach induced the formation of micro/nanoporous surface is a promising and reliable alternative surface modification for Ti dental implant applications.
Collapse
Affiliation(s)
- Ping-Jen Hou
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
| | - Keng-Liang Ou
- Department of Dentistry, Taipei Medical University Hospital, Taipei 110, Taiwan; Department of Dentistry, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; Department of Dentistry, Cathay General Hospital, Taipei 106, Taiwan; 3D Global Biotech Inc., New Taipei City 221, Taiwan
| | - Chin-Chieh Wang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Chiung-Fang Huang
- Department of Dentistry, Taipei Medical University Hospital, Taipei 110, Taiwan; School of Dental Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Muhammad Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Erwan Sugiatno
- Department of Prosthodontic, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Tzu-Sen Yang
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan; School of Biomedical Engineering, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; Graduate Institute of Nanomedicine and Medical Engineering, Taipei Medical University, Taipei 110, Taiwan.
| | - Hsin-Hua Chou
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan; Department of Prosthodontic, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia; Department of Dentistry, Taipei Medical University-Wan Fang Hospital, Taipei 116, Taiwan.
| |
Collapse
|
50
|
Huang H, Xu Z, Shao X, Wismeijer D, Sun P, Wang J, Wu G. Multivariate linear regression analysis to identify general factors for quantitative predictions of implant stability quotient values. PLoS One 2017; 12:e0187010. [PMID: 29084260 PMCID: PMC5662232 DOI: 10.1371/journal.pone.0187010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 10/11/2017] [Indexed: 11/23/2022] Open
Abstract
Objectives This study identified potential general influencing factors for a mathematical prediction of implant stability quotient (ISQ) values in clinical practice. Methods We collected the ISQ values of 557 implants from 2 different brands (SICace and Osstem) placed by 2 surgeons in 336 patients. Surgeon 1 placed 329 SICace implants, and surgeon 2 placed 113 SICace implants and 115 Osstem implants. ISQ measurements were taken at T1 (immediately after implant placement) and T2 (before dental restoration). A multivariate linear regression model was used to analyze the influence of the following 11 candidate factors for stability prediction: sex, age, maxillary/mandibular location, bone type, immediate/delayed implantation, bone grafting, insertion torque, I-stage or II-stage healing pattern, implant diameter, implant length and T1-T2 time interval. Results The need for bone grafting as a predictor significantly influenced ISQ values in all three groups at T1 (weight coefficients ranging from -4 to -5). In contrast, implant diameter consistently influenced the ISQ values in all three groups at T2 (weight coefficients ranging from 3.4 to 4.2). Other factors, such as sex, age, I/II-stage implantation and bone type, did not significantly influence ISQ values at T2, and implant length did not significantly influence ISQ values at T1 or T2. Conclusions These findings provide a rational basis for mathematical models to quantitatively predict the ISQ values of implants in clinical practice.
Collapse
Affiliation(s)
- Hairong Huang
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Nord-Holland, the Netherlands
| | - Zanzan Xu
- Department of Prosthodontic Dentistry, Johann Wolfgang Goethe University, Frankfurt, Hessen, Germany
| | - Xianhong Shao
- Best & Easy Dental Clinic, Hangzhou, Zhejiang Province, P.R. China
| | - Daniel Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Nord-Holland, the Netherlands
| | - Ping Sun
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, P.R. China
- * E-mail: (PS); (JW)
| | - Jingxiao Wang
- The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang Province, P.R. China
- * E-mail: (PS); (JW)
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Nord-Holland, the Netherlands
| |
Collapse
|