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Sulyhan-Sulyhan K, Barberá-Millán J, Larrazábal-Morón C, Espinosa-Giménez J, Gómez-Adrián MD. Radiographic Study of Transcrestal Sinus Floor Elevation Using Osseodensification Technique with Graft Material: A Pilot Study. Biomimetics (Basel) 2024; 9:276. [PMID: 38786485 PMCID: PMC11118885 DOI: 10.3390/biomimetics9050276] [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: 03/11/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
This pilot study aimed to evaluate the level of implant success after transcrestal sinus floor elevation (tSFE) using the osseodensification technique (OD) combined with beta-tricalcium phosphate (β-TCP) by analyzing clinical and radiographic results. Moreover, the increase in bone height was analyzed immediately after surgery, 3 months after, and before loading by taking standardized radiographic measurements. Thirteen patients, four males and nine females, with a mean age of 54.69 ± 5.86 years, requiring the placement of one implant in the upper posterior maxilla, with a residual bone height of <8 mm and a minimum bone width of 5 mm, participated in the study. The bone gain data was obtained using cone-beam computed tomography (CBCT) immediately after surgery and twelve months after the placement. The correlation between initial and final bone height with implant stability was also assessed. The results were analyzed using SPSS 23 software (p < 0.05). The results of the study indicated a 100% implant success rate after a follow-up period of twelve months. Preoperative main bone height was 5.70 ± 0.95 mm. The osseodensification technique allowed a significant increase of 6.65 ± 1.06 mm immediately after surgery. After a twelve-month follow-up, a graft material contraction of 0.90 ± 0.49 mm was observed. No correlation was observed between the bone height at the different times of the study and the primary stability of the implant. Considering the limitations of the size sample of this study, the osseodensification technique used for transcrestal sinus lift with the additional bone graft material (β-TCP) may provide a predictable elevation of the maxillary sinus floor, allowing simultaneous implant insertion with adequate stability irrespective of bone height limitations.
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Affiliation(s)
- Khrystyna Sulyhan-Sulyhan
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
| | - Javier Barberá-Millán
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
- Doctoral School, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain
| | - Carolina Larrazábal-Morón
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
| | - Julián Espinosa-Giménez
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
| | - María Dolores Gómez-Adrián
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
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Li N, Jiang Z, Pu R, Zhu D, Yang G. Implant failure and associated risk factors of transcrestal sinus floor elevation: A retrospective study. Clin Oral Implants Res 2023; 34:66-77. [PMID: 36346662 DOI: 10.1111/clr.14020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/20/2022] [Accepted: 11/03/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVES This retrospective study aimed to evaluate early and late implant loss rates after transcrestal sinus floor elevation (TSFE) and to identify the risk factors related to these failures. MATERIAL AND METHODS All patients treated with TSFE and simultaneous implant placement during October 2015 to March 2019 were evaluated for inclusion. A total of 802 patients with 976 implants met the inclusion criteria. Clinical and radiographic information was collected from medical records and image software. Univariate and multivariate Cox proportional hazards frailty regression models were performed to identify potential risk factors associated with early and late implant loss after TSFE. RESULTS The 3-year cumulative implant survival rate was 96.9% (95% CI 95.8%-98.0%). Twelve implants in 12 patients were lost before or at the abutment connection, while 24 implants in 24 patients were lost after functional loading. The Cox frailty regression analyses indicated that two factors were correlated with early implant loss: TSFE with grafting materials, and operators with less clinical experience. As for late implant loss, RBH ≤6 mm, male sex, and certain implant brands were associated with a significantly increased failure rate. CONCLUSIONS Transcrestal sinus floor elevation with simultaneous implant placement is a predictable treatment option in the atrophic maxilla. The presence of grafting materials and the lack of clinical experience of the surgeon were possibly associated with early implant loss, while low RBH, male sex, and certain implant brands tended to increase late implant loss.
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Affiliation(s)
- Na Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang, China.,Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Zhejiang, China.,Cancer Center of Zhejiang University, Hangzhou, China
| | - Zhiwei Jiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang, China.,Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Zhejiang, China.,Cancer Center of Zhejiang University, Hangzhou, China
| | - Rui Pu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang, China
| | - Danji Zhu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang, China.,Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Zhejiang, China.,Cancer Center of Zhejiang University, Hangzhou, China
| | - Guoli Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang, China.,Zhejiang Provincial Clinical Research Center for Oral Diseases, Zhejiang, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Zhejiang, China.,Cancer Center of Zhejiang University, Hangzhou, China
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Implant-Supported Prosthesis Is a Viable Treatment Alternative for American Society of Anesthesiology Physical Status 3 Individuals—A Retrospective Cohort Study. J Clin Med 2022; 11:jcm11072002. [PMID: 35407610 PMCID: PMC8999666 DOI: 10.3390/jcm11072002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 04/01/2022] [Indexed: 02/01/2023] Open
Abstract
Background: Within medicine, it is common to use risk prediction tools towards clinical decision making. One of the most widely accepted assessment tools is the American Society of Anesthesiologists Physical Status (ASA PS) classification. Oral and maxillofacial procedures performed in an ambulatory setting would be considered low risk for the procedure itself. However, little is known concerning the impact of ASA PS on surgical outcomes. The aim of the present research was to evaluate the effect of ASA PS classification on early implant failure (EIF). Methods: Retrospective cohort study based on dental records. All treatments were performed by experienced oral and maxillofacial surgeons and experienced prosthodontists. Inclusion criteria: ASA physical status 1,2,3, consecutive individuals. Variables included the following: age, gender, implant location, implant length, implant width, smoking, and early implant failure. Results: Univariate tests at the patient level showed no statistically difference between the different classifications of ASA PS (1,2,3). Multivariate model using logistic regression at individual level showed that two factors were found to be associated with an increased risk for EIF—augmented bone and implant brand. Conclusions: ASA PS 3 is not a contraindication for implant-supported prostheses. EIF in ASA PS 3 is not significantly different from ASA PS 1,2. In contrast, factors such as bone augmentation and implant brand might be significant risk factors for EIF, regardless of ASA PS.
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Oirschot BV, zhang Y, Alghamdi HS, cordeiro JM, nagay B, barão VA, de avila ED, van den Beucken J. Surface engineering for dental implantology: favoring tissue responses along the implant
. Tissue Eng Part A 2022; 28:555-572. [DOI: 10.1089/ten.tea.2021.0230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Bart van Oirschot
- Radboudumc Department of Dentistry, 370502, Regenerative Biomaterials, Nijmegen, Gelderland, Netherlands,
| | - yang zhang
- Shenzhen University, 47890, School of Stomatology, Health Science Center, Shenzhen, Guangdong, China,
| | - Hamdan S Alghamdi
- King Saud University College of Dentistry, 204573, Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia,
| | - jairo m cordeiro
- UNICAMP, 28132, Department of Prosthodontics and Periodontology, Piracicaba Dental School, Campinas, SP, Brazil,
| | - bruna nagay
- UNICAMP, 28132, Department of Prosthodontics and Periodontology, Piracicaba Dental School, Campinas, SP, Brazil,
| | - valentim ar barão
- UNICAMP, 28132, Department of Prosthodontics and Periodontology, Piracicaba Dental School, Campinas, SP, Brazil,
| | - erica dorigatti de avila
- UNESP, 28108, Department of Dental Materials and Prosthodontics, School of Dentistry at Araraquara, São Paulo State University (UNESP), Sao Paulo, SP, Brazil,
| | - Jeroen van den Beucken
- Radboudumc Department of Dentistry, 370502, Regenerative Biomaterials, Nijmegen, Gelderland, Netherlands,
- RU RIMLS, 59912, Nijmegen, Gelderland, Netherlands,
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Implant survival after graftless sinus floor augmentation in highly atrophic maxillae: a randomized controlled trial in a split mouth study. Int J Implant Dent 2021; 7:107. [PMID: 34661774 PMCID: PMC8523734 DOI: 10.1186/s40729-021-00387-y] [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: 05/19/2021] [Accepted: 10/06/2021] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The success rate of dental implants after graftless sinus augmentation versus conventional sinus augmentation surgery in atrophic maxillae in edentulous patients was investigated. METHODS This randomized study was performed in ten edentulous patients with marked maxillary atrophy. On the graftless side, the sinus membrane was lifted by a resorbable membrane. The control side was augmented with a mixture of autografts and xenografts. Implant placement followed 6 months postoperatively. Outcomes were implant survival, success of prosthetic rehabilitation and stability of vertical bone gain. RESULTS Ten patients were included. Postoperative radiology showed sufficient bone gain on both maxillary sides. Follow-up varied from 57 to 88 months. The conventional side showed significant (p = 0.041) more bone gain than the experimental side (respectively, 9.69 mm and 6.20 mm). A total of 59 implants were placed: 30 after conventional, 29 after graftless augmentation. One implant was lost on the conventional side and four on the experimental side. The implant survival was significantly higher on the conventional side (96.7% vs. 86.2%, p < 0.001, RR = 4.14). Prosthetic restoration was functionally successful in all cases. CONCLUSION Bone gain and implant survival were significantly lower in the non-grafted side versus the grafted side. Prosthetic rehabilitation was possible in all ten patients. The non-grafted technique may have some potential for clinical use, although it showed poorer results. Trial registration The Netherlands Trialregister. NTR NL3541 (NTR3696). Registered 20 January 2013, https://www.trialregister.nl/trial/3541 .
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Park WB, Han JY, Kang KL. Long-Term Comparison of Survival and Marginal Bone of Implants with and without Sinus Augmentation in Maxillary Molars within the Same Patients: A 5.8- to 22-Year Retrospective Study. J Clin Med 2021; 10:jcm10071360. [PMID: 33806214 PMCID: PMC8036778 DOI: 10.3390/jcm10071360] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/13/2021] [Accepted: 03/23/2021] [Indexed: 12/12/2022] Open
Abstract
Maxillary sinus floor augmentation (MSFA) is widely used and considered a predictable procedure for implant placement. However, the influence of MSFA on implant survival and marginal bone loss (MBL) is still inconclusive. The purpose of this retrospective observational study is to evaluate the long-term genuine influence of MSFA on the survival and MBL of implants by comparing those with and without MSFA only in maxillary molars within the same patients. Thirty-eight patients (28 male and 10 female), with a total of 119 implants, received implants with and without MSFA, and were followed up for 5.8 to 22 years. Patient- and implant-related factors were assessed with a frailty model for implant survival and with generalized estimation equations (GEE) for MBL around the implant. No variables showed a statistical significance for implant failure in the frailty model. In GEE analysis for MBL, MSFA did not show any statistical significance. In conclusion, MSFA demonstrated no significant influence on implant failure and MBL in posterior maxilla in this study.
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Affiliation(s)
- Won-Bae Park
- Department of Periodontology, School of Dentistry, Kyung Hee University, Seoul 05278, Korea;
| | - Ji-Young Han
- Department of Periodontology, Division of Dentistry, College of Medicine, Hanyang University, Seoul 04763, Korea;
| | - Kyung-Lhi Kang
- Department of Periodontology, School of Dentistry, Kyung Hee University, Seoul 05278, Korea;
- Correspondence: ; Tel.: +82-2-440-7515; Fax: +82-2-440-7549
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Ha J, Son JH, Sung IY, Cho YC, Choi JH. Clinical outcome of implants placed in grafted maxillary sinus via lateral approach: A 10-year follow-up study. J Dent Sci 2020; 15:270-277. [PMID: 32952884 PMCID: PMC7486508 DOI: 10.1016/j.jds.2020.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 05/20/2020] [Indexed: 11/18/2022] Open
Abstract
Background/purpose The maxillary sinus floor augmentation (MSFA) technique is frequently used for the preparation of implant sites in the maxillary region. The aim of this study was to investigate the 10-year outcome of dental implants placed in a grafted maxillary sinus, and identify possible risk factors for implant failure. Materials and methods We retrospectively analyzed 202 implants after MSFA in 97 patients from January 2008 to April 2009. The outcome variables were 1) 10-year cumulative survival rate of the implant, 2) risk factors for implant failure, and 3) correlation between preoperative residual bone height (RBH) and graft materials in terms of implant survival. Graft materials used were divided into five different groups: autogenic, allogenic, xenogenic, combination of allogenic and xenogenic, or combination of autogenic and xenogenic graft. Results The cumulative 10-year survival rate for the implants was 96.04%. In regions with a residual bone height of 5.0 mm and less, greater RBH was preferable for long-term implant survival (odds ratio = 3.475; p = 0.035). Implant survival was not significantly different with different graft materials, even when RBH was unfavorable. Conclusion The placement of dental implants with MSFA is a reliable procedure. Further, RBH is an important predictor of long-term implant survival.
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Affiliation(s)
- Jinhee Ha
- Department of Dentistry, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Jang-Ho Son
- Department of Oral and Maxillofacial Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
- Corresponding author. Department of Oral and Maxillofacial Surgery, Ulsan University Hospital, 877 Bangeojinsunhwando-ro, Dong-gu, Ulsan, 44033, South Korea. Fax.: +82 52 250 7236.
| | - Iel-Yong Sung
- Department of Oral and Maxillofacial Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Yeong-Cheol Cho
- Department of Oral and Maxillofacial Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Jong-Ho Choi
- Department of Oral and Maxillofacial Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
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Kadkhodazadeh M, Moscowchi A, Zamani Z, Amid R. Clinical and Radiographic Outcomes of a Novel Transalveolar Sinus Floor Elevation Technique. J Maxillofac Oral Surg 2020; 21:548-556. [DOI: 10.1007/s12663-020-01439-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/18/2020] [Indexed: 01/19/2023] Open
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Pabst A, Ackermann M, Thiem D, Kämmerer P. Influence of Different Rehydration Protocols on Biomechanical Properties of Allogeneic Cortical Bone Plates: A Combined in-vitro/ in-vivo Study. J INVEST SURG 2020; 34:1158-1164. [PMID: 32441171 DOI: 10.1080/08941939.2020.1767735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: Allogeneic cortical bone plates (CP) are used for alveolar ridge augmentation. Since CP are freeze-dried and dehydrated during processing, the breaking strength (BS) and the flexibility (FX) are reduced, resulting in a relevant risk for plate fractures during insertion. The aim of this study was to evaluate the influence of rehydration time on the biomechanical properties (BS & FX) of CP in-vitro and in vivo.Material and Methods: 40 CP were randomly divided into four experimental groups. (A) untreated control (n = 10), rehydration for 10 (B), 30 (C) and 60 (D) minutes in 0.9% saline solution (n = 10 each). BS [Newton, N] and FX [mm] (force till fracture and distance of deflection to the breaking point) were analyzed. Besides, architectural features of all CP groups were visualized and examined by scanning electron microscopy (SEM). In addition, the frequency of CP fractures of rehydrated- vs. non-rehydrated CP was retrospectively analyzed in 6 patients.Results: Compared to the control group, significantly increased BS and FX were demonstrated after 10, 30 and 60 minutes of rehydration (p each ≤ 0.035). After a rehydration time of 10 minutes, no additional increase of BS and FX was seen when compared to30 and 60 minutes (p each = 1.0). SEM scans demonstrated that the CP fracture characteristics were influenced by the different rehydration protocols. The frequency of CP fractures was reduced in patients by CP rehydration.Conclusion: The biomechanical properties of CP can be significantly improved by 10 min of rehydration, resulting in an increased BS and FX, that might be clinically relevant.
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Affiliation(s)
- Andreas Pabst
- Department of Oral- and Maxillofacial Surgery, Federal Armed Forces Hospital, Koblenz, Germany
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center, Mainz, Germany
| | - Daniel Thiem
- Department of Oral- and Maxillofacial Surgery, University Medical Center, Mainz, Germany
| | - Peer Kämmerer
- Department of Oral- and Maxillofacial Surgery, University Medical Center, Mainz, Germany
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Park S, Song YW, Sanz‐Martín I, Cha J, Lee J, Jung U. Clinical benefits of ridge preservation for implant placement compared to natural healing in maxillary teeth: A retrospective study. J Clin Periodontol 2020; 47:382-391. [DOI: 10.1111/jcpe.13231] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 11/26/2019] [Accepted: 12/06/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Su‐Hyun Park
- 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
| | - Ignacio Sanz‐Martín
- Department of Periodontology Research Institute for Periodontal Regeneration Yonsei University College of Dentistry Seoul South Korea
- Section of graduate Periodontology Faculty of Odontology Complutense University of Madrid Madrid Spain
| | - Jae‐Kook Cha
- Department of Periodontology Research Institute for Periodontal Regeneration Yonsei University College of Dentistry Seoul South Korea
| | - Jung‐Seok Lee
- Department of Periodontology Research Institute for Periodontal Regeneration 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
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Goiato MC, Andreotti AM, dos Santos DM, Nobrega AS, de Caxias FP, Bannwart LC. Influence of length, diameter and position of the implant in its fracture incidence: A Systematic Review. J Dent Res Dent Clin Dent Prospects 2019; 13:109-116. [PMID: 31592306 PMCID: PMC6773918 DOI: 10.15171/joddd.2019.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 07/02/2019] [Indexed: 11/29/2022] Open
Abstract
Background. Implant fractures can cause difficult problems for patients and dentists. This systematic review aimed to determine the influence of some implant parameters on the occurrence of their fracture and to determine the incidence of fractures reported in recent years.
Methods. A search was conducted in Pubmed database, from which 12 studies published in the last 12 years were selected.
Results. This review reported a 2% incidence of implant fracture. Most implants had been in function between 3 and 4 years until fracture. The studies did not provide necessary information to establish a relationship between the different parameters of implants and the incidence of fractures.
Conclusion. Thus, the indication of type, diameter and length of an implant and the bone quality in the region receiving it should be studied and accurately examined for each individual case in order to avoid future failures.
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Affiliation(s)
- Marcelo Coelho Goiato
- Professor, Department of Dental Materials and Prosthodontics; Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho, UNESP, Araçatuba, Brazil
| | - Agda Marobo Andreotti
- PhD Student; Department of Dental Materials and Prosthodontics; Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho, UNESP, Araçatuba, Brazi
| | | | - Adhara Smith Nobrega
- PhD Student; Department of Dental Materials and Prosthodontics; Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho, UNESP, Araçatuba, Brazi
| | - Fernanda Pereira de Caxias
- PhD Student; Department of Dental Materials and Prosthodontics; Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho, UNESP, Araçatuba, Brazi
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Sonkar J, Maney P, Yu Q, Palaiologou A. Retrospective study to identify associations between clinician training and dental implant outcome and to compare the use of MATLAB with SAS. Int J Implant Dent 2019; 5:28. [PMID: 31396724 PMCID: PMC6687780 DOI: 10.1186/s40729-019-0182-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/08/2019] [Indexed: 12/05/2022] Open
Abstract
Background The aim of this study was to identify any associations between predictor variables, mainly clinician training and dental implant outcome, among the residents in different departments and to compare statistical analysis with the use of MATLAB R2017a™ to SAS version 9.4. Methods Dental records were reviewed from January 1, 2011, to December 31, 2015. Two thousand forty-eight dental implants were placed on 471 patients seen by residents from the departments of Periodontics, Prosthodontics, and Oral and Maxillofacial Surgery (OMFS) at Louisiana State University Health Sciences Center School of Dentistry. The following parameters were investigated by means of multilevel logistic regression analysis: demographics, implant parameters, department, and residents’ year of training. Results A total of 1449 implants were included in the study. Overall, within a 1–5-year time period, 1343 (92.6%) implants had survived and 106 (7.4%) implants failed. Discipline (p = 0.0004), residents’ year of training (p < 0.0001), and implant systems (p = 0.0024) showed significant associations with implant outcome. Periodontics had a survival rate of 94.14% followed by Prosthodontics (91.48%) and OMFS (89.64%). The survival rates of implants by year of training were as follows: third-year Periodontics and OMFS (94.20%), second-year (89.38%), and first-year (88.6%). Conclusion The level and type of clinician training had an impact on implant outcome in different residency programs. Further studies will be necessary to identify the reasons for the differences in implant failure rates.
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Affiliation(s)
- Jyoti Sonkar
- University of New England, College of Dental Medicine, 716 Stevens Ave, Goddard Hall 316, Portland, ME, 04103, USA.
| | - Pooja Maney
- Department of Periodontics, Louisiana State University School of Dentistry, New Orleans, LA, USA
| | - Qingzhao Yu
- Biostatistics Program, School of Public Health, Louisiana State University Health Science Center, New Orleans, LA, USA
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Madani E, Smeets R, Freiwald E, Sanj MS, Jung O, Grubeanu D, Hanken H, Henningsen A. Impact of different placement depths on the crestal bone level of immediate versus delayed placed platform-switched implants. J Craniomaxillofac Surg 2018; 46:1139-1146. [PMID: 29802060 DOI: 10.1016/j.jcms.2018.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/16/2018] [Accepted: 05/02/2018] [Indexed: 10/16/2022] Open
Abstract
PURPOSE The preservation of peri-implant bone is one requirement for long-term success of dental implants. The purpose of this study was to evaluate the impact of subcrestal placement on the crestal bone level of immediate versus delayed placed implants after loading. MATERIALS AND METHODS In this retrospective study, data of 159 patients who received 330 implants was analyzed. Implants were placed subcrestally, crestally or supracrestally into fresh sockets or healed sites. Vertical bone level height was assessed radiographically and implants were followed up annually. The influence of patient and implant related risk factors for peri-implant bone loss was evaluated using a linear mixed model. RESULTS Depth of implant placement was significantly correlated with peri-implant bone loss (P = 0.001, 95% CI). Least effective loss of crestal bone was determined when implants were placed between 1 mm and 1.99 mm subcrestally. Smoking significantly enhanced the risk of peri-implant bone loss (P = 0.04, 95% CI). Immediate implant placement was not positively correlated with peri-implant bone loss (P = 0.51, 95% CI). CONCLUSION Within the limits of this study, implant placement 1.08 mm subcrestally may be recommendable in order to avoid supracrestal expositions of platform-switched titanium implants over time.
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Affiliation(s)
- Elika Madani
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Eric Freiwald
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Maryam Setareh Sanj
- Department of Preventive and Restorative Dentistry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Ole Jung
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | | | - Henning Hanken
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Anders Henningsen
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Oral and Maxillofacial Surgery, German Armed Forces Hospital, Hamburg, Germany.
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14
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Gellrich NC, Rahlf B, Zimmerer R, Pott PC, Rana M. A new concept for implant-borne dental rehabilitation; how to overcome the biological weak-spot of conventional dental implants? Head Face Med 2017; 13:17. [PMID: 28962664 PMCID: PMC5622522 DOI: 10.1186/s13005-017-0151-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 09/12/2017] [Indexed: 01/25/2023] Open
Abstract
Background Every endosseous dental implant is dependent on an adequate amount and quality of peri-implant hard and soft tissues and their fully functional interaction. The dental implant could fail in cases of insufficient bone and soft tissues or due to a violation of the soft to hard tissues to implant shoulder interface with arising of a secondary bone loss. Method To overcome this biological weak-spot, we designed a new implant that allows for multi vector endosseous anchorage around the individual underlying bone, which has to be scanned by computed tomography (CT) or Cone beam CT (CBCT) technique to allow for planning the implant. We developed a workflow to digitally engineer this customized implant made up of two planning steps. First, the implant posts are designed by prosthodontic-driven backward planning, and a wireframe-style framework is designed on the individual bony surface of the recipient site. Next, the two pieces are digitally fused and manufactured as a single piece implant using the SLM technique (selective laser melting) and titanium-alloy-powder. Results Preoperative FEM-stress-test of the individual implant is possible before it is inserted sterile in an out-patient procedure. Conclusion Unlike any other historical or current dental implant protocol, our newly developed “individual patient solutions dental” follows the principle of a fully functional and rigid osteosynthesis technology and offers a quick solution for an implant-borne dental rehabilitation in difficult conditions of soft and hard tissues.
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Affiliation(s)
- Nils-Claudius Gellrich
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Björn Rahlf
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
| | - Rüdiger Zimmerer
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Philipp-Cornelius Pott
- Department of Prosthetic Dentistry and Biomedical Materials Research, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Majeed Rana
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
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15
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Kim YH, Choi NR, Kim YD. The factors that influence postoperative stability of the dental implants in posterior edentulous maxilla. Maxillofac Plast Reconstr Surg 2017; 39:2. [PMID: 28101497 PMCID: PMC5218953 DOI: 10.1186/s40902-016-0100-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/21/2016] [Indexed: 11/18/2022] Open
Abstract
Background All clinicians are aware of the difficulty of installing a dental implant in posterior maxilla because of proximate position of maxillary sinus, insufficient bone width, and lower bone density. This study is to examine which factors will make the implantation in the posterior maxilla more difficult, and which factors will affect the postoperative implant stability in this region. Methods Five hundred seventy-three fixtures on the maxilla posterior were included for this study from all the patients who underwent an installation of the dental implant fixture from January 2010 to December 2014 at the Department of Oral and Maxillofacial Surgery in Pusan National University Dental Hospital (Yangsan, Korea). The postoperative implant stability quotient (ISQ) value, fixture diameter and length, presence of either bone graft or sinus lift, and graft material were included in the reviewed factors. The width and height of the bone bed was assessed via preoperative cone beam CT image analysis. The postoperative ISQ value was taken just before loading by using the OsstellTM mentor® (Integration Diagnostics AB, Gothenburg, Sweden). The t test and ANOVA methods were used in the statistical analysis of the data. Results Mean ISQ of all the included data was 79.22. Higher initial bone height, larger fixture diameter, and longer fixture length were factors that influence the implant stability on the posterior edentulous maxilla. On the other hand, the initial bone width, bone graft and sinus elevation procedure, graft material, and approach method for sinus elevation showed no significant impact associated with the implant stability on the posterior edentulous maxilla. Conclusions It is recommended to install the fixtures accurately in a larger diameter and longer length by performing bone graft and sinus elevation.
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Affiliation(s)
- Yun-Ho Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Na-Rae Choi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
| | - Yong-Deok Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
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16
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Silva RDO, Passador F, Caria PHF. Twist removal of healed vs. nonhealed implants-a mechanical and histological study in mini pigs. Int J Implant Dent 2016; 2:23. [PMID: 27888491 PMCID: PMC5124023 DOI: 10.1186/s40729-016-0059-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 11/18/2016] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The objective of this study was to evaluate the effect of removal torque (reverse torque) of titanium implants in peri-implant bone. METHODS The P1-M1 teeth were extracted bilaterally of 6 mini pigs (BR-1). Each animal received 6 titanium implants, three for each side of mandible. On the right side of mandible, 3 implants reminded 9 months (9M) under masticatory activity and on the left side, other 3 implants were placed and immediately removed (IR). All 36 implants were removed by removal torque, and the recorded values were statistically analyzed. Animals were euthanized right after the removal torque and recording. Each third (cervical, medium, and apical) of peri-implant bone was extracted and analyzed histological and immunohistochemically. Student's t test was used to determine statistical differences in the values between the 9M and IR samples. Data were presented as means with standard deviations. The level of significance was set at 5% (P < 0.05). RESULTS Removal torque was higher in 9M experimental situation than in IR. Histological characteristics of mature bone were presented in the 9M experimental condition, and immature bone characteristics were presented in the IR experimental condition. Removal torque caused small fractures and rounding in the bone grooving. Immunohistochemical analysis reinforced the histological results; Student's t test provided statistically significant differences to osteocalcin expression in 9M samples and no statistically significant differences expression to collagen I in both experimental conditions (P < 0.05). CONCLUSIONS Removal torque caused microscopical fractures and smoothing in the peri-implant bone grooves, but it does not compromise the bone healing.
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17
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Herrmann J, Hentschel A, Glauche I, Vollmer A, Schlegel KA, Lutz R. Implant survival and patient satisfaction of reduced diameter implants made from a titanium-zirconium alloy: A retrospective cohort study with 550 implants in 311 patients. J Craniomaxillofac Surg 2016; 44:1940-1944. [PMID: 27765553 DOI: 10.1016/j.jcms.2016.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 08/11/2016] [Accepted: 09/19/2016] [Indexed: 11/29/2022] Open
Abstract
The aim of the study was to evaluate implant survival of reduced-diameter implants compared to regular-diameter implants. A retrospective evaluation of 154 Straumann Bone Level Roxolid® implants (diameter 3.3 mm) with SLActive®-surface in 107 patients, which were inserted between 2009 and 2010 in private practice, was performed. The mean observation period was 22.4 ± 8.2 months. 396 Straumann SLActive® implants (4.1 mm and 4.8 mm) in 204 patients, with an observation period of 28.4 ± 10.1 months served as control group. Implant survival rate, resonance frequency analysis and patient satisfaction were evaluated. The implant survival rate was 97.4% in the test vs. 98.5% in the control group. Resonance frequency analysis showed statistically significant lower values for the reduced-diameter implants. Patient satisfaction showed no significant difference between the test and the control group. Reduced-diameter implants displayed high survival rates during the period investigated and represent a convincing treatment alternative. Long-term follow-up investigations confirmed the high implant survival rates of 96.8% (after 69.7 ± 12.3 months) in the test group and 98.5% (after 76.0 ± 13.6 months) in the control group.
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Affiliation(s)
- Jan Herrmann
- Private Practice, Lothar-Streit-Straße 10b, 08056 Zwickau, Germany; Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany
| | - Andreas Hentschel
- Private Practice, Lothar-Streit-Straße 10b, 08056 Zwickau, Germany; Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany
| | - Ingmar Glauche
- Institute for Medical Informatics and Biometry (IMB) (Director of the Institution: Prof. Dr. rer. med. Ingo Röder), Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | | | - Karl Andreas Schlegel
- Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany
| | - Rainer Lutz
- Department of Oral and Maxillofacial Surgery (Director of the Institution: Prof. Dr. med. Dr. med. dent. Dr. h.c. Friedrich Wilhelm Neukam), University Hospital Erlangen, Friedrich Alexander Universität Erlangen-Nürnberg, Östliche Stadtmauerstrasse 27, 91054 Erlangen, Germany.
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18
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Wu AYJ, Hsu JT, Chee W, Lin YT, Fuh LJ, Huang HL. Biomechanical evaluation of one-piece and two-piece small-diameter dental implants: In-vitro experimental and three-dimensional finite element analyses. J Formos Med Assoc 2016; 115:794-800. [DOI: 10.1016/j.jfma.2016.01.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/05/2016] [Accepted: 01/06/2016] [Indexed: 10/22/2022] Open
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Badr M, Oliver R, Pemberton P, Coulthard P. Platelet-Rich Plasma in Grafted Maxillae. IMPLANT DENT 2016; 25:492-8. [DOI: 10.1097/id.0000000000000410] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Bechara S, Kubilius R, Veronesi G, Pires JT, Shibli JA, Mangano FG. Short (6-mm) dental implants versus sinus floor elevation and placement of longer (≥10-mm) dental implants: a randomized controlled trial with a 3-year follow-up. Clin Oral Implants Res 2016; 28:1097-1107. [PMID: 27402427 DOI: 10.1111/clr.12923] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To investigate whether short (6-mm) dental implants could be an alternative to sinus floor elevation (SFE) and placement of longer (≥10-mm) implants in the posterior maxilla. MATERIALS AND METHODS Over a 3-year period, all patients presenting with partial edentulism in the posterior maxilla were considered for inclusion in this randomized controlled trial. Patients were randomly chosen either to receive short (6-mm) implants (test group [TG]) or to undergo SFE with simultaneous placement of standard-length (≥10-mm) implants (control group [CG]). SFE was performed using the lateral technique. In both groups, tapered implants (AnyRidge, MegaGen, Gyeongbuk, South Korea) were placed. All implants were loaded after 4 months of healing. At each annual follow-up session, clinical and radiographic parameters were assessed. Primary outcomes were implant survival, stability (measured with the implant stability quotient [ISQ]), marginal bone loss (MBL), and complications; secondary outcomes were patient satisfaction and treatment time and cost. RESULTS Thirty-three patients were assigned to the TG and 20 to the CG. Forty-five implants were inserted in each group. At 3 years, implant survival rates were 100% and 95.0% for the TG and CG, respectively; this difference was not statistically significant (P = 0.38). The mean ISQ values of the TG and CG did not differ at placement (68.2 vs. 67.8, P = 0.1), at delivery of the final restoration (69.5 vs. 69.4, P = 0.9), and after 1 year (71.0 vs. 71.5, P = 0.1); at 3 years, the CG had a significantly higher mean ISQ than the TG (72.4 vs. 71.6, P = 0.004). Mean MBL was significantly higher in the CG than in the TG, both at 1 year (0.14 mm vs. 0.21 mm, P = 0.006) and at 3 years (0.20 mm vs. 0.27 mm, P = 0.01). A few complications were reported. Surgical time and cost were significantly higher in the CG than in the TG (P < 0.0001). Patient satisfaction was high in both groups. CONCLUSIONS In this randomized controlled trial, results for short (6-mm) implants were similar to those for longer (≥10-mm) implants in augmented bone. Short implants might be preferable to SFE, because the treatment is faster and less expensive. Long-term randomized controlled trials are required to confirm these results.
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Affiliation(s)
- Souheil Bechara
- Department of Oral and Maxillofacial Surgery, Lithuanian University of Health Science, Kaunas, Lithuania
| | - Ricardas Kubilius
- Department of Oral and Maxillofacial Surgery, Lithuanian University of Health Science, Kaunas, Lithuania
| | - Giovanni Veronesi
- Department of Clinical and Experimental Medicine, University of Varese, Varese, Italy
| | - Jefferson T Pires
- Department of Periodontology and Oral Implantology, Dental Research Division, Guarulhos University, Guarulhos, Sao Paulo, Brazil
| | - Jamil A Shibli
- Department of Periodontology and Oral Implantology, Dental Research Division, Guarulhos University, Guarulhos, Sao Paulo, Brazil
| | - Francesco G Mangano
- Department of Surgical and Morphological Sciences, Dental School, University of Varese, Varese, Italy
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Kamigaki Y, Sato I, Yosue T. Histological and radiographic study of human edentulous and dentulous maxilla. Anat Sci Int 2016; 92:470-482. [PMID: 27067228 DOI: 10.1007/s12565-016-0344-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 03/28/2016] [Indexed: 11/26/2022]
Abstract
Data on the bone trabecular structure and density of the edentulous regions of the first upper molars are important for designing successful dental treatments, especially dental implants. However, no detailed defined morphometric properties on the human maxilla are available at the immunohistochemical and radiographic levels. Cone-beam computed tomography analysis and immunohistochemical observation were applied to the maxillary first molar region of 91 cadavers (46 males and 45 females). The edentulous maxilla can be classified into the following three forms: fully edentulous (FE), partially edentulous (PE), and immediately edentulous (IE). Compared with the first molar dentulous (FMD) specimens, significant differences in cortical bone structure and bone density exist among IE, PE, and FE in maxilla (P < 0.001). According to histochemical observations, the positive CD31 reaction clearly described a large vessel of the PE and small vessels of FMD and IE in maxillary sinus connective tissue. These structural issues were clearly related to tooth extraction. These morphological and radiographic data describing the edentulous region of the maxillary first molar might be useful for improving dental treatments.
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Affiliation(s)
- Yukino Kamigaki
- Department of Oral and Maxillofacial Radiology, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Iwao Sato
- Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Takashi Yosue
- Department of Oral and Maxillofacial Radiology, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
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22
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Attar BM, Alaei S, Badrian H, Davoudi A. Clinical and radiological evaluation of implants placed with osteotome sinus lift technique: 19-month follow-up. Ann Maxillofac Surg 2016; 6:190-194. [PMID: 28299256 PMCID: PMC5343626 DOI: 10.4103/ams.ams_7_16] [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] [Indexed: 11/22/2022] Open
Abstract
Aims: Implant placement in the posterior region of the maxilla might be problematic due to poor regional bone quality. The aim of this study was to clinically and radiologically evaluate implants which were placed in the posterior region of the maxilla (with insufficient bone height) with osteotome sinus lift technique after 19-month follow-up. Materials and Methods: Twenty-four patients with posterior maxillary alveolar height ranging from 5 to 8 mm were chosen for this prospective study. After breaking of the cortical bony sinus floor, sufficient bone substitute was placed, and sinus floor was elevated. In this way, a new sinus floor was created, which was designated for further implants placement. Fifty implants were placed immediately after osteotomy sinus lift technique. The mean clinical and radiological follow-up period was 19 months (with a range of 14–24 months). Success factors such as the absence of mobility, pain, infection, and the amount of crestal bone loss were determined in this study. For data analyzing, Kruskal–Wallis and Mann–Whitney tests were used. Results: After 19 months, results showed 96% success rate. Two out of fifty implants failed due to mobility. The mean depth of implants in sinus, mean height of residual crestal bone before surgery, and the mean rate of crestal bone loss were 3.8, 7.9, and 0.71 mm, respectively. Conclusion: Osteotome sinus lift technique is a noninvasive surgical method for enhancing a desired length. Furthermore, implants insertion was successful after osteotome sinus lift technique in cases with insufficient bone height.
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Affiliation(s)
- Bijan Movahedian Attar
- Department of Oral and Maxillofacial Surgery, Dental Implants Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Samaneh Alaei
- Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamid Badrian
- Cosmetic and Dental Restorative Specialist, Private Practice, Isfahan, Iran
| | - Amin Davoudi
- Dental Students Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
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23
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Malmstrom H, Gupta B, Ghanem A, Cacciato R, Ren Y, Romanos GE. Success rate of short dental implants supporting single crowns and fixed bridges. Clin Oral Implants Res 2015; 27:1093-8. [DOI: 10.1111/clr.12693] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Hans Malmstrom
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - Bhumija Gupta
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - Alexis Ghanem
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - Rita Cacciato
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - Yanfang Ren
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - Georgios E. Romanos
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
- Department of Periodontology; Stony Brook University; Stony Brook NY USA
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