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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.
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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
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Xiao Y, Lv L, Xu Z, Zhou L, Lin Y, Lin Y, Guo J, Chen J, Ou Y, Lin L, Wu D. Correlation between peri-implant bone mineral density and primary implant stability based on artificial intelligence classification. Sci Rep 2024; 14:3009. [PMID: 38321110 PMCID: PMC10847140 DOI: 10.1038/s41598-024-52930-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 01/25/2024] [Indexed: 02/08/2024] Open
Abstract
Currently, the classification of bone mineral density (BMD) in many research studies remains rather broad, often neglecting localized changes in BMD. This study aims to explore the correlation between peri-implant BMD and primary implant stability using a new artificial intelligence (AI)-based BMD grading system. 49 patients who received dental implant treatment at the Affiliated Hospital of Stomatology of Fujian Medical University were included. Recorded the implant stability quotient (ISQ) after implantation and the insertion torque value (ITV). A new AI-based BMD grading system was used to obtain the distribution of BMD in implant site, and the bone mineral density coefficients (BMDC) of the coronal, middle, apical, and total of the 1 mm site outside the implant were calculated by model overlap and image overlap technology. Our objective was to investigate the relationship between primary implant stability and BMDC values obtained from the new AI-based BMD grading system. There was a significant positive correlation between BMDC and ISQ value in the coronal, middle, and total of the implant (P < 0.05). However, there was no significant correlation between BMDC and ISQ values in the apical (P > 0.05). Furthermore, BMDC was notably higher at implant sites with greater ITV (P < 0.05). BMDC calculated from the new AI-based BMD grading system could more accurately present the BMD distribution in the intended implant site, thereby providing a dependable benchmark for predicting primary implant stability.
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Affiliation(s)
- Yanjun Xiao
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350001, China
| | - Lingfeng Lv
- Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, 350001, China
| | - Zonghe Xu
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350001, China
| | - Lin Zhou
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350001, China
| | - Yanjun Lin
- Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, 350001, China
| | - Yue Lin
- Newland Digital Technology Co., Ltd., Fuzhou, Fujian, China
| | - Jianbin Guo
- Fujian Provincial Engineering Research Center of Oral Biomaterial, Fujian Medical University, Fuzhou, 350001, China
| | - Jiang Chen
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350001, China
| | - Yanjing Ou
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350001, China
| | - Lin Lin
- Newland Digital Technology Co., Ltd., Fuzhou, Fujian, China
| | - Dong Wu
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350001, China.
- Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou, 350001, China.
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Putra RH, Cooray U, Nurrachman AS, Yoda N, Judge R, Putri DK, Astuti ER. Radiographic alveolar bone assessment in correlation with primary implant stability: A systematic review and meta-analysis. Clin Oral Implants Res 2024; 35:1-20. [PMID: 37840388 DOI: 10.1111/clr.14195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/27/2023] [Accepted: 10/03/2023] [Indexed: 10/17/2023]
Abstract
INTRODUCTION The radiographic examination of alveolar bone using 3D radiographic examination is essential in dental implant treatment planning. Our study aimed to systematically review and quantitatively analyze the correlation between alveolar bone parameters, specifically bone density and cortical bone thickness, assessed using cone beam computed tomography (CBCT) and/or multidetector computed tomography (MDCT); and primary implant stability (PIS) determined using implant stability quotient (ISQ), Periotest® value (PTV), and insertion torque value (ITV). METHODS This review was registered in the PROSPERO database (registration number CRD42022307245). An electronic literature search was conducted on the PubMed, SCOPUS, and Web of Science databases for papers published until February 2022. The Quality Assessment in Prognostic Studies (QUIPS) tool was used to assess risk of bias. Meta-analyses were conducted to calculate the estimated average correlation coefficient based on a multilevel random-effects model, followed by subgroup analysis. RESULTS Twenty-six studies were included in this review, consisting of 17 prospective cohort studies, eight retrospective cohort studies, and one nonrandomized controlled trial. A total of 3109 implants placed in 1171 subjects were analyzed. Twenty-three studies were evaluated using meta-analysis. The alveolar bone condition was significantly correlated with ISQ (r = 0.60; p < .001), IT (r = 0.52; p < .001), and PTV (r = -0.42; p < .05). CONCLUSION Alveolar bone condition is significantly associated with PIS. Low bone density and thin cortical bone can lead to low PIS; therefore, modification of treatment planning and surgical procedures might be needed to avoid poor osseointegration.
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Affiliation(s)
- Ramadhan Hardani Putra
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Upul Cooray
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
- Division of International and Community Oral Health, Graduate School of Dentistry, Tohoku University, Sendai, Japan
| | - Aga Satria Nurrachman
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Nobuhiro Yoda
- Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University, Sendai, Japan
| | - Roy Judge
- Department of Prosthodontics, Melbourne Dental School, University of Melbourne, Melbourne, Victoria, Australia
| | - Dina Karimah Putri
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
- Division of Dental Informatics and Radiology, Graduate School of Dentistry, Tohoku University, Sendai, Japan
| | - Eha Renwi Astuti
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
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Monje A, Roccuzzo A, Buser D, Wang HL. Influence of buccal bone wall thickness on the peri-implant hard and soft tissue dimensional changes: A systematic review. Clin Oral Implants Res 2023; 34 Suppl 26:8-27. [PMID: 37750522 DOI: 10.1111/clr.14177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 09/27/2023]
Abstract
BACKGROUND The significance on the association between the peri-implant bucco-lingual dimension (BLD) at the stage of implant placement and the occurrence of biological and esthetic complications is yet unknown. MATERIAL AND METHODS Systematic screening of electronic sources was carried out to identify clinical and preclinical studies reporting on the baseline BLD and/or buccal bone thickness (BBT) values. A secondary objective was to assess the effect of simultaneous grafting at sites with deficient or no buccal bone wall (BBW) at baseline. The primary outcome variables were BBT, BLD, and buccal vertical bone loss (VBL) at re-evaluation. Moreover, radiographic, clinical, and patient-reported outcome measures (PROMs) were evaluated. RESULTS Overall, 12 clinical and four preclinical studies met the inclusion criteria. Inconsistencies were found in defining the critical BBT across the clinical and preclinical data evaluated. The clinical evidence demonstrated that during healing, dimensional changes occur in the alveolar bone and in the BBW that may compromise the integrity of the peri-implant bone, leading to VBL and mucosal recession (MR), particularly in scenarios exhibiting a thin BBW. The preclinical evidence validated the fact that implants placed in the presence of a thin BBW, are more prone to exhibit major dimensional changes and VBL. Moreover, the clinical data supported that, in scenarios where dehiscence-type defects occur and are left for spontaneous healing, greater VBL and MR together with the occurrence of biologic complications are expected. Furthermore, the augmentation of dehiscence-type defects is associated with hard and soft tissue stability. PROMs were not reported. CONCLUSIONS Dimensional changes occur as result of implant placement in healed ridges that may lead to instability of the peri-implant hard and soft tissues. Sites presenting a thin BBW are more prone to exhibit major changes that may compromise the integrity of the buccal bone and may lead to biologic and esthetic complications.
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Affiliation(s)
- Alberto Monje
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Andrea Roccuzzo
- Department of Periodontology, University of Bern, Bern, Switzerland
- Department of Oral Maxillofacial Surgery, Copenaghen University Hospital (Rigshospitalet), Copenhagen, Denmark
| | - Daniel Buser
- School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Hom-Lay Wang
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Monje A, Roccuzzo A, Buser D, Wang HL. Significance of buccal bone wall thickness on the fate of peri-implant hard and soft tissues: A systematic review. Clin Oral Implants Res 2023; 34:157-176. [PMID: 36626118 DOI: 10.1111/clr.14029] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND The significance of the association between the peri-implant buccolingual dimension (BLD) at the stage of implant placement and the occurrence of biological and esthetic complications is yet unknown. MATERIAL AND METHODS Systematic screening of electronic sources was carried out to identify clinical and preclinical studies reporting on the baseline BLD and/or buccal bone thickness (BBT) values. A secondary objective was to assess the effect of simultaneous grafting at sites with deficient or no buccal bone wall (BBW) at baseline. The primary outcome variables were BBT, BLD, and vertical bone loss (VBL) at re-evaluation. Moreover, radiographic, clinical- and patient-reported outcome measures (PROMs) were evaluated. RESULTS Overall, 12 clinical and four preclinical studies met the inclusion criteria. The clinical evidence demonstrated that during healing, dimensional changes occur in the alveolar bone and in the BBW that may compromise the integrity of bone around a dental implant. The preclinical evidence validated the fact that implants placed in the presence of thin BBW are more prone to exhibit major dimensional changes. Moreover, the clinical and preclinical data supported that in scenarios where dehiscence-type defects are left for spontaneous healing, greater VBL and mucosal recession (MR) together with the occurrence of biologic complications are expected. Furthermore, the augmentation of dehiscence-type defects is associated with hard and soft tissue stability. CONCLUSIONS Dimensional changes occur as a result of implant placement in healed ridges that may lead to VBL and MR. Thin BBW (≲2 mm) are prone to exhibit major postchanges that may compromise the integrity of the buccal bone, biologic and esthetic complications.
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Affiliation(s)
- Alberto Monje
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain.,Department of Periodontology, University of Bern, Bern, Switzerland
| | - Andrea Roccuzzo
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Daniel Buser
- School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Hom-Lay Wang
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Feng L, Chen H, Chen Z, Chen Y, Gu X. Associations between cortical bone-to-implant contact and microstructure derived from CBCT and implant primary stability. Clin Oral Implants Res 2023; 34:243-253. [PMID: 36727924 DOI: 10.1111/clr.14037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/25/2022] [Accepted: 01/13/2023] [Indexed: 02/03/2023]
Abstract
OBJECTIVES To evaluate the associations between the cortical bone-to-implant contact (CBIC), bone microstructure derived from cone-beam computed tomography (CBCT), and the primary stability of the implant. MATERIALS AND METHODS Twenty-two patients with 65 implants were enrolled in this study. The peak insertion torque values (ITVs) were measured during implant insertion, and the implant stability quotient (ISQ) values were measured immediately after implant placement and 3 months after surgery. The profiles of the peri-implant bone structure were outlined using the volumetric reconstruction of the CBCTs and superimposition of the virtual models, and the features of CBIC and bone microstructure parameters were measured. The linear mixed effects model and generalized estimating equation were used to explore the predictors for implant primary stability. RESULTS The average ITV, baseline, and secondary ISQ values were 31.44 ± 6.54 N·cm, 73.34 ± 7.39, and 80.32 ± 4.58, respectively. Statistically significant correlations were found between ITV and surface area of CBIC (r = .340, p = .006), bone volume fraction (r = .294, p = .017), and bone surface fraction (r = -.278, p = .039). Implants with buccolingual CBIC had a higher ITV than implants without CBIC (p = .016). None of the parameters were associated with baseline and secondary ISQ values in generalized estimating equation analysis (all p > .05). CONCLUSIONS Within the limitations of the study, preoperative CBCT measurements might enable the prediction of ITV and therefore of implant primary stability values.
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Affiliation(s)
- Lan Feng
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Haida Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ziyun Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yan Chen
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xinhua Gu
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Wagner C, Herberg S, Bourauel C, Stark H, Dörsam I. Biomechanical analysis of different fixed dental restorations on short implants: a finite element study. BIOMED ENG-BIOMED TE 2023:bmt-2022-0414. [PMID: 36795430 DOI: 10.1515/bmt-2022-0414] [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: 10/23/2022] [Accepted: 02/02/2023] [Indexed: 02/17/2023]
Abstract
OBJECTIVES Although the use of short implants is becoming more common for patients with atrophic alveolar ridges, their use is still quite limited. This is due to the lack of data of long-term survival compared to standard-length implants. The aim of this study was to determine the load in the bone and implant system with different superstructures. METHODS Three kinds of prosthetic restorations were created on short implants based on CT-Data. Two short implants with different macro-geometries were used. The implants were inserted in idealised posterior lower mandibular segments and afterwards restored with a crown, a double splinted crown, and a bridge. RESULTS The analysis was performed under load of 300 N either divided between a mesial and distal point or as a point load on the pontic/mesial crown. The different design of the implant systems had a noticeable influence on the stress in the cortical bone, in the implant system, and the displacement of the superstructure as well. CONCLUSIONS Compared with implants of standard length, higher stresses were observed, which can lead early failure of the implant during the healing period or a late cervical bone resorption. Precise indications are essential for short implants to avoid the failure of short implants.
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Affiliation(s)
- Christian Wagner
- Department of Prosthetic Dentistry, Preclinical Education and Materials Science, Dental School, University of Bonn Bonn, Germany
| | - Samira Herberg
- Department of Prosthetic Dentistry, Preclinical Education and Materials Science, Dental School, University of Bonn Bonn, Germany
| | | | - Helmut Stark
- Department of Prosthetic Dentistry, Preclinical Education and Materials Science, Dental School, University of Bonn Bonn, Germany
| | - Istabrak Dörsam
- Department of Prosthetic Dentistry, Preclinical Education and Materials Science, Dental School, University of Bonn Bonn, Germany.,Oral Technology, University of Bonn Bonn, Germany
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Monje A, Kan JY, Borgnakke W. Impact of local predisposing/precipitating factors and systemic drivers on peri‐implant diseases. Clin Implant Dent Relat Res 2022. [PMID: 36533411 DOI: 10.1111/cid.13155] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/01/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Strong evidence suggests the infectious nature of peri-implant diseases occurring in susceptible hosts. Epidemiological reports, though, indicate that peri-implantitis is a site-specific entity. Hence, the significance of local factors that may predispose/precipitate plaque accumulation and the impact of systemic drivers that alter the immune response are relevant in the prevention and management of peri-implant disorders. PURPOSE The purpose of the present review is to shed light on the significance of local and systemic factors on peri-implant diseases, making special emphasis on the associations with peri-implantitis. METHODS The biologic plausibility and supporting evidence aiming at providing a concluding remark were explored in the recent scientific literature for local predisposing/precipitating factors and systemic drivers related to peri-implant diseases. RESULTS Local predisposing factors such as soft tissue characteristics, implant position and prosthetic design proved being strongly associated with the occurrence of peri-implant diseases. Hard tissue characteristics, however, failed to demonstrate having a direct association with peri-implant diseases. Robust data points toward the strong link between residual sub-mucosal cement and peri-implant diseases, while limited data suggests the impact of residual sub-mucosal floss and peri-implantitis. Systemic drivers/habits such as hyperglycemia and smoking showed a strong negative impact on peri-implantitis. However, there is insufficient evidence to claim for any link between metabolic syndrome, atherosclerotic cardiovascular disease, and obesity and peri-implant diseases. CONCLUSION Local predisposing/precipitating factors and systemic drivers may increase the risk of peri-implant diseases. Therefore, comprehensive anamnesis of the patients, educational/motivational programs and exhaustive prosthetically-driven treatment planning must be fostered aiming at reducing the rate of biological complications in implant dentistry.
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Affiliation(s)
- Alberto Monje
- Department of Periodontology and Oral Medicine University of Michigan Ann Arbor Michigan USA
- Department of Periodontology Universitat Internacional de Catalunya Barcelona Spain
- Department of Periodontology, ZMK University of Bern Bern CH Switzerland
| | - Joseph Y. Kan
- Department of Implantology Loma Linda University Loma Linda California USA
| | - Wenche Borgnakke
- Department of Periodontology and Oral Medicine University of Michigan Ann Arbor Michigan USA
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Al-Fakeh H, Sharhan HM, Ziyad TA, Abdulghani EA, Al-Moraissi E, Al-Sosowa AA, Liu B, Zhang K. Three-dimensional radiographic assessment of bone changes around posterior dental implants at native bone site in Gansu Province, Northwest of China: A retrospective cohort study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e186-e191. [PMID: 35413461 DOI: 10.1016/j.jormas.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 03/04/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
PURPOSE The aim of this study was to assess bone density and thickness changed following dental implant placement in the maxillary and mandibular jaws. Also, observe the form of bone loss around the implant and the relationship between preoperative bone density and bone thickness with bone loss around dental implants. METHODS 65 patients, including 102 dental implants, were assessed in this study. CBCT was utilized to determine the bone condition (bone thickness and density at three levels (sub-crestal bone at 3 mm (CB3), 6 mm (CB6), and 9 mm (CB9)) before implant placement, and 2 to 3 years after placement, also determine the bone loss pattern. RESULTS The difference in bone thickness was 0.32 ± 0.50 mm at CB3, 0.18 ± 0.40 mm at CB6, and 0.14 ± 0.07 mm at CB9. The change buccal bone density at CB3, CB6, and CB9 were 344.5 ± 278.9, 260.5 ± 276, and 138.9 ± 313.9 HU, respectively, and the change in lingual bone density was 252.7 ± 247, 179.9 ± 244.1, and 281 ± 4063 HU, respectively. Only the CB3 level showed a significant decrease in bone thickness (p < 0.001), and a change in bone density was observed at the three levels (p < 0.001). The means of vertical and horizontal bone loss were 0.19 ± 0.23 mm and 0.18 ± 0.22 mm, respectively. Splinted or adjacent dental implants have more horizontal bone loss, with statistically significant (p < 0.001). Age, gender, and implant position were not statistically related to the outcome variables. There was a negative correlation between the preoperative status of the bone condition and pattern bone loss, as indicated by Pearson's correlation coefficient. CONCLUSION CBCT detected a significant bone thickness decrease was found only at the crestal third. A significant bone density increase was found at three levels around dental implants. Implant areas with higher bone thickness and density had less bone loss.
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Affiliation(s)
- Hanan Al-Fakeh
- Prosthodontics Department, School of Stomatology Lanzhou University, Lanzhou 730000, China; Prosthodontics Department, Faculty of Dentistry, Thamar University, Dhamar, Yemen
| | - Hasan M Sharhan
- Department of Orthodontics and Dentofacial Orthopedics, College of Dentistry, Lanzhou University, Lanzhou, China; Department of Orthodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen
| | - Tareq Abdulazeez Ziyad
- Master of clinical dentistry, Prosthodontics Department, Jordan university of science and technology
| | - Ehab A Abdulghani
- Department of Orthodontics and Dentofacial Orthopedics, College of Dentistry, Lanzhou University, Lanzhou, China
| | - Essam Al-Moraissi
- Dept. of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thamar University, Thamar, Yemen
| | - Abeer A Al-Sosowa
- Department of Periodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen; Department of Periodontics, College of Dentistry, Lanzhou University, Lanzhou, China
| | - Bin Liu
- Prosthodontics Department, School of Stomatology Lanzhou University, Lanzhou 730000, China; Prosthodontics Department, Hospital of Stomatology, Lanzhou University, Lanzhou 730000, China
| | - Kailiang Zhang
- Prosthodontics Department, School of Stomatology Lanzhou University, Lanzhou 730000, China; Prosthodontics Department, Hospital of Stomatology, Lanzhou University, Lanzhou 730000, China.
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Jani M, Gaur V, Doshi AG, Patel K, Pałka Ł. Clinically Based Classification and Positioning Indication for Single-Piece Compressive Implants Placement in Regard to Extraction Socket. Healthcare (Basel) 2022; 10:healthcare10040598. [PMID: 35455776 PMCID: PMC9024819 DOI: 10.3390/healthcare10040598] [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: 02/15/2022] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 12/10/2022] Open
Abstract
(1) Background: Dental implantology has been rapidly developing over the last decades. The introduction of new materials, surface modifications and implant designs has brought the need to rethink and systematize our knowledge regarding dental implants. Thus, the aim of this paper is to introduce a new classification and implant positioning indications that can be used to maximize the survival rate and the aesthetic outcome of single-piece compressive screw implants. (2) Materials and methods: This classification was based on a multicenter clinical and radiological observation of 151 patients, in whom 1057 implants were placed with a success rate of 98.5% (1041). The follow-up period was up to 82 months with a mean of 22.34 months. (3) Results: it seems that, in the case of single-piece implants, diameter and length of the implant have influence on their survival rate, whereas smoking and hypertension do not. (4) Conclusions: this paper provides clinicians with comprehensive information about the rationale, criteria and implementation of the new classifications based on a large number of implants and long-term observations.
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Affiliation(s)
- Mmehul Jani
- Department of Oral and Maxillofacial Surgery, College of Dental Sciences, Ahmedabad 382115, India; (M.J.); (K.P.)
| | - Vivek Gaur
- Jaipur Dental College, Maharaj Vinayak Global University, Jaipur 302038, India;
| | | | - Kiran Patel
- Department of Oral and Maxillofacial Surgery, College of Dental Sciences, Ahmedabad 382115, India; (M.J.); (K.P.)
| | - Łukasz Pałka
- Private Dental Practice, 68200 Zary, Poland
- Correspondence:
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Cayo-Rojas C, Rosas-Díaz J, Córdova-Limaylla N, Palomino-Zorrilla J, Guerrero M, Carreteros R, Cervantes-Ganoza L. Repeatability and reproducibility of a modified Lekholm and Zarb bone quality classification based on cone beam computed tomography. J Int Soc Prev Community Dent 2022. [DOI: 10.4103/jispcd.jispcd_291_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Di Stefano DA, Arosio P, Capparè P, Barbon S, Gherlone EF. Stability of Dental Implants and Thickness of Cortical Bone: Clinical Research and Future Perspectives. A Systematic Review. MATERIALS 2021; 14:ma14237183. [PMID: 34885335 PMCID: PMC8658728 DOI: 10.3390/ma14237183] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/12/2021] [Accepted: 11/22/2021] [Indexed: 12/30/2022]
Abstract
Dental surgery implantation has become increasingly important among procedures that aim to rehabilitate edentulous patients to restore esthetics and the mastication ability. The optimal stability of dental implants is correlated primarily to the quality and quantity of bone. This systematic literature review describes clinical research focusing on the correlation between cortical bone thickness and primary/secondary stability of dental fixtures. To predict successful outcome of prosthetic treatment, quantification of bone density at the osteotomy site is, in general, taken into account, with little attention being paid to assessment of the thickness of cortical bone. Nevertheless, local variations in bone structure (including cortical thickness) could explain differences in clinical practice with regard to implantation success, marginal bone resorption or anchorage loss. Current knowledge is preliminarily detailed, while tentatively identifying which inconclusive or unexplored aspects merit further investigation.
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Affiliation(s)
- Danilo Alessio Di Stefano
- Dental School, Vita-Salute University IRCCS San Raffaele, 20132 Milan, Italy; (D.A.D.S.); (E.F.G.)
- Private Practitioner, 20132 Milan, Italy
| | | | - Paolo Capparè
- Department of Dentistry, Vita-Salute University IRCCS San Raffaele, 20132 Milan, Italy
- Correspondence: ; Tel.: +39-0226433619
| | - Silvia Barbon
- Section of Human Anatomy, Department of Neurosciences, Padua University, 35121 Padua, Italy;
| | - Enrico Felice Gherlone
- Dental School, Vita-Salute University IRCCS San Raffaele, 20132 Milan, Italy; (D.A.D.S.); (E.F.G.)
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Shemtov-Yona K. Quantitative assessment of the jawbone quality classification: A meta-analysis study. PLoS One 2021; 16:e0253283. [PMID: 34133463 PMCID: PMC8208540 DOI: 10.1371/journal.pone.0253283] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 06/02/2021] [Indexed: 12/26/2022] Open
Abstract
AIM Bone quality is evaluated using bone density for qualitative classification, a characteristic that may be delicate to evaluate. Contemporary implantology that relies on modern measurement techniques, needs a more quantitative estimate of the bone quality. MATERIALS AND METHODS PubMed and EMBASE databases were searched with no time restriction. Clinical and radiographic studies reporting on alveolar ridge dimensions and its parameters in different areas of the dentate and edentulous jaws were included. A meta-analysis was performed using random effect models to report a combined mean for alveolar ridge and its parameters. Meta regression statistical tests were performed in order to identify differences in those outcome parameters. RESULTS 30 studies were included. The majority of the selected studies (total of 27) used live human subjects and CBCT to analyze alveolar ridge dimensions and its parameters. Using the combined mean obtained from the meta-analysis, a typical portrait of the alveolar ridge was constructed, and a geometrically based quantitative bone classification proposed. The quantitative classification was found to match the existing qualitative classification. CONCLUSION A geometry-based analysis was constructed that yields valuable insights on the bone type based on its components and on the dynamics of the dentate / edentulous states.
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Affiliation(s)
- Keren Shemtov-Yona
- Faculty of Mechanical Engineering, Technion, Haifa, Israel
- The Maurice and Gabriela Goldschleger School of Dental Medicine, Department of Oral Biology, Tel Aviv University, Tel Aviv, Israel
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Schnutenhaus S, Götz W, Dreyhaupt J, Rudolph H, Luthardt RG, Edelmann C. Associations among Primary Stability, Histomorphometric Findings, and Bone Density: A Prospective Randomized Study after Alveolar Ridge Preservation with a Collagen Cone. Dent J (Basel) 2020; 8:E112. [PMID: 33023224 PMCID: PMC7712570 DOI: 10.3390/dj8040112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/22/2020] [Accepted: 09/27/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The objective of this investigation was to examine whether determination of bone density (BD) with a cone beam computed tomography (CBCT) scan could help predict the primary stability (PS) of the implants and to investigate whether associations between the histomorphometric findings and the CBCT scan could be observed. MATERIALS AND METHODS In this randomized clinical study, the efficacy of alveolar ridge preservation (ARP) with a combination of a collagen cone and a collagen membrane procedure after tooth extraction was investigated. CBCT scans were obtained after a healing period of 8 (±1) weeks. Subsequently, the CBCT scans were evaluated in terms of BD at different heights of the former socket. Eleven (±1) weeks after tooth extraction, implant placement was performed and PS was measured with resonance frequency analysis. Potential associations among the radiologically measured BD, the histomorphometric results, and the PS were analyzed. RESULTS No direct association was observed between the radiologically determined BD and the histomorphometric findings. No significant associations could be found between the BD and the PS. CONCLUSION No significant associations were observed among the BD determined by the CBCT, the histomorphometric findings, and the PS.
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Affiliation(s)
- Sigmar Schnutenhaus
- Center of Dentistry, Dr. Schnutenhaus MVZ GmbH, 78247 Hilzingen, Germany
- Center of Dentistry, Department of Prosthetic Dentistry, Ulm University, 89081 Ulm, Germany; (H.R.); (R.G.L.); (C.E.)
| | - Werner Götz
- Oral Biology Laboratory, Department of Orthodontics, University of Bonn, 53113 Bonn, Germany;
| | - Jens Dreyhaupt
- Institute of Epidemiology and Medical Biometry, Ulm University, 89081 Ulm, Germany;
| | - Heike Rudolph
- Center of Dentistry, Department of Prosthetic Dentistry, Ulm University, 89081 Ulm, Germany; (H.R.); (R.G.L.); (C.E.)
| | - Ralph G. Luthardt
- Center of Dentistry, Department of Prosthetic Dentistry, Ulm University, 89081 Ulm, Germany; (H.R.); (R.G.L.); (C.E.)
| | - Cornelia Edelmann
- Center of Dentistry, Department of Prosthetic Dentistry, Ulm University, 89081 Ulm, Germany; (H.R.); (R.G.L.); (C.E.)
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Putra RH, Yoda N, Iikubo M, Kataoka Y, Yamauchi K, Koyama S, Cooray U, Astuti ER, Takahashi T, Sasaki K. Influence of bone condition on implant placement accuracy with computer-guided surgery. Int J Implant Dent 2020; 6:62. [PMID: 32951152 PMCID: PMC7502099 DOI: 10.1186/s40729-020-00249-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 08/12/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The impact of the jaw bone condition, such as bone quantity and quality in the implant placement site, affecting the accuracy of implant placement with computer-guided surgery (CGS) remains unclear. Therefore, this study aimed to evaluate the influence of bone condition, i.e., bone density, bone width, and cortical bone thickness at the crestal bone on the accuracy of implant placement with CGS. METHODS A total of 47 tissue-level implants from 25 patients placed in the posterior mandibular area were studied. Implant placement position was planned on the simulation software, Simplant® Pro 16, by superimposing preoperative computed tomography images with stereolithography data of diagnostic wax-up on the dental cast. Implant placement surgery was performed using the surgical guide plate to reflect the planned implant position. The post-surgical dental cast was scanned to determine the position of the placed implant. Linear and vertical deviations between planned and placed implants were calculated. Deviations at both platform and apical of the implant were measured in the bucco-lingual and mesio-distal directions. Intra- and inter-observer variabilities were calculated to ensure measurement reliability. Multiple linear regression analysis was employed to investigate the effect of the bone condition, such as density, width, and cortical bone thickness at the implant site area, on the accuracy of implant placement (α = 0.05). RESULT Intra- and inter-observer variabilities of these measurements showed excellent agreement (intra class correlation coefficient ± 0.90). Bone condition significantly influenced the accuracy of implant placement using CGS (p < 0.05). Both bone density and width were found to be significant predictors. CONCLUSIONS Low bone density and/or narrow bucco-lingual width near the alveolar bone crest in the implant placement site might be a risk factor influencing the accuracy of implant placement with CGS.
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Affiliation(s)
- Ramadhan Hardani Putra
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Sendai, Miyagi, 980-8575, Japan.,Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Nobuhiro Yoda
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Sendai, Miyagi, 980-8575, Japan.
| | - Masahiro Iikubo
- Division of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yoshihiro Kataoka
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kensuke Yamauchi
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Shigeto Koyama
- Maxillofacial Prosthetics Clinic, Tohoku University Hospital, Sendai, Japan
| | - Upul Cooray
- Division of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Eha Renwi Astuti
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Keiichi Sasaki
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Sendai, Miyagi, 980-8575, Japan
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Biomechanical Effects of a New Macrogeometry Design of Dental Implants: An In Vitro Experimental Analysis. J Funct Biomater 2019; 10:jfb10040047. [PMID: 31731451 PMCID: PMC6963387 DOI: 10.3390/jfb10040047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 12/25/2022] Open
Abstract
The purpose of the present study was to measure and compare the insertion torque, removal torque, and the implant stability quotient by resonance frequency analysis in different polyurethane block densities of two implant macrogeometries. Four different polyurethane synthetic bone blocks were used with three cortical thickness: Bone 1 with a cortical thickness of 1 mm, Bone 2 with a cortical thickness of 2 mm, Bone 3 with a cortical thickness of 3 mm, and Bone 4, which was totally cortical. Four groups were created in accordance with the implant macrogeometry (n = 10 per group) and surface treatment: G1—regular implant design without surface treatment; G2—regular implant design with surface treatment; G3—new implant design without surface treatment; G4—new implant design with surface treatment. All implants used were 4 mm in diameter and 10 mm in length and manufactured in commercially pure titanium (grade IV) by Implacil De Bortoli (São Paulo, Brazil). The implants were installed using a computed torque machine, and following installation of the implant, the stability quotient (implant stability quotient, ISQ) values were measured in two directions using Osstell devices. The data were analyzed by considering the 5% level of significance. All implant groups showed similar mean ISQ values without statistical differences (p > 0.05), for the same synthetic bone block: for Bone 1, the value was 57.7 ± 3.0; for Bone 2, it was 58.6 ± 2.2; for Bone 3, it was 60.6 ± 2.3; and for Bone 4, it was 68.5 ± 2.8. However, the insertion torque showed similar higher values for the regular macrogeometry (G1 and G2 groups) in comparison with the new implant macrogeometry (G3 and G4 groups). The analysis of the results found that primary stability does not simply depend on the insertion torque but also on the bone quality. In comparison with the regular implant macrogeometry, the new implant macrogeometry decreased the insertion torque without affecting the implant stability quotient values.
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