The International journal of oral implantology : implantologist最新文献_第8页

The Effects of Defect Type and Depth, and Measurement Direction on the Implant Stability Quotient Value. 缺陷类型、深度及测量方向对种植体稳定商值的影响。

The International journal of oral implantology : implantologist Pub Date : 2015-12-10 DOI: 10.1563/AAID-JOI-D-13-0031

Seung-Yun Shin, S. Shin, Seung-Beom Kye, Jongrak Hong, J. Paeng, Seok-Woo Chang, Seung-Min Yang

{"title":"The Effects of Defect Type and Depth, and Measurement Direction on the Implant Stability Quotient Value.","authors":"Seung-Yun Shin, S. Shin, Seung-Beom Kye, Jongrak Hong, J. Paeng, Seok-Woo Chang, Seung-Min Yang","doi":"10.1563/AAID-JOI-D-13-0031","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-13-0031","url":null,"abstract":"The purpose of this study was to evaluate the effect of defect type and depth as well as measurement direction on implant stability in an ex vivo peri-implant bovine rib bone model. Six kinds of defects (3-wall 2.5 mm, 3-wall 5 mm, 1-wall 2.5 mm, 1-wall 5 mm, circumferential 2.5 mm, circumferential 5 mm), and control (no defect) were prepared in 14 bovine rib bones. A total of 84 defects and 14 controls were created. The same type and size of implants (4 × 10 mm) were placed in each group. The thickness of cortical bone and the insertion torque were measured for each defect, and the implant stability quotient (ISQ) value was measured 3 times from 4 different directions. The thickness of cortical bone ranged from 2.71-3.18 mm. Insertion torque decreased as the defect size increased. As the defect size for the same defect depth increased, the ISQ value decreased (P < .001). There were significant differences between the ISQ values obtained with different measurement directions only between the control and 3-wall 5 mm defect (P < .0001). The ISQ value opposite to the defect direction was higher than that in the defect direction in all 3 directions of the 3-wall and 1-wall 5 mm defects. ISQ values were influenced by defect type and depth. Loss of cortical bone reduced the stability of implants and reduced the ISQ value. Measurement direction also influenced ISQ values.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"1 1","pages":"652-6"},"PeriodicalIF":0.0,"publicationDate":"2015-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77283437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Stress Distribution on Short Implants at Maxillary Posterior Alveolar Bone Model with Different Bone-to-Implant Contact Ratio: Finite Element Analysis. 不同骨-种植体接触比下上颌后牙槽骨模型短种植体的应力分布:有限元分析

The International journal of oral implantology : implantologist Pub Date : 2015-01-01 DOI: 10.1563/aaid-joi-d-14-00003

D. Yazıcıoğlu, B. Bayram, Y. Oğuz, Duygu Çınar, S. Uçkan

{"title":"Stress Distribution on Short Implants at Maxillary Posterior Alveolar Bone Model with Different Bone-to-Implant Contact Ratio: Finite Element Analysis.","authors":"D. Yazıcıoğlu, B. Bayram, Y. Oğuz, Duygu Çınar, S. Uçkan","doi":"10.1563/aaid-joi-d-14-00003","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-14-00003","url":null,"abstract":"The aim of this study is to evaluate the stress distribution of the short dental implants and bone-to-implant contact ratios in the posterior maxilla using 3D finite element models. Two different 3D maxillary posterior bone segments were modelled. Group 1 was composed of a bone segment consisting of cortical bone and type IV cancellous bone with 100% bone-to-implant contact. Group 2 was analoged as a bone segment consisting of cortical bone and cancellous bone including spherical bone design and homogenous tubular hollow spaced structures with 30% spherical porosities and 70% bone-to-implant contact ratio. 4 mm diameter and 5 mm height dental implants were assumed to be osseointegrated and placed at the center of the segments. 300 N lateral occlusal bite force was applied at a 25 degree inclination to the implants long axis. The maximum von Mises stresses in cortical and cancellous bones; and implant-abutment complex were calculated. The von Mises stress values upon the implants and the cancellous bone around the implants of the 70% bone-to-implant contact group were almost three times higher compared to the values of the 100% bone-to-implant contact group. For clinical reality, use of the 70% model for finite element analysis (FEA) simulation of the posterior maxilla region better represents real alveolar bone and the increased stress and strain distributions evaluated on the cortical and cancellous bone around the dental implants.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75487818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effects of Defect Type and Depth, and Measurement Direction on the Implant Stability Quotient (ISQ) Value. 缺损类型、深度及测量方向对种植体稳定商(ISQ)值的影响。

The International journal of oral implantology : implantologist Pub Date : 2014-01-01 DOI: 10.1563/aaid-joi-d-13-00331

Seung-Yun Shin, S. Shin, Seung-Beom Kye, Jongrak Hong, J. Paeng, Seok-Woo Chang, Seung-Min Yang

{"title":"The Effects of Defect Type and Depth, and Measurement Direction on the Implant Stability Quotient (ISQ) Value.","authors":"Seung-Yun Shin, S. Shin, Seung-Beom Kye, Jongrak Hong, J. Paeng, Seok-Woo Chang, Seung-Min Yang","doi":"10.1563/aaid-joi-d-13-00331","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-13-00331","url":null,"abstract":"Abstract Abstract The purpose of this study was to evaluate the effect of defect type and depth as well as measurement direction on implant stability in an ex vivo peri-implant bovine rib bone model. Six kinds of defects (3-wall 2.5 mm, 3-wall 5 mm, 1-wall 2.5 mm, 1-wall 5 mm, circumferential 2.5 mm, circumferential 5 mm) and control (no defect) were prepared in 14 bovine rib bones. A total of 84 defects and 14 controls were created. The same type and size of implants (4x10 mm) were placed in each group. The thickness of cortical bone and the insertion torque were measured for each defect and the ISQ value was measured three times from four different directions. The thickness of cortical bone ranged from 2.71 to 3.18 mm. Insertion torque decreased as the defect size increased. As the defect size for the same defect depth increased, the ISQ value decreased (p<0.001). There were significant differences between the ISQ values obtained with different measurement directions only between the control and 3-wall 5 mm defect (p<0.0001). The ISQ value opposite to the defect direction was higher than that in the defect direction in all three directions of the 3-wall and 1-wall 5 mm defects. ISQ values were influenced by defect type and depth. Loss of cortical bone reduced the stability of implants and reduced the ISQ value. Measurement direction also influenced ISQ values.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79194138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

FLAPLESS IMPLANT PLACEMENT-A CASE REPORT. 无瓣种植体置入1例报告。

The International journal of oral implantology : implantologist Pub Date : 2014-01-01 DOI: 10.1563/aaid-joi-d-12-00026.1

D. Jain, Ghanshyam Gaur

引用次数: 3

RETENTIVENESS OF VARIOUS LUTING AGENTS USED WITH IMPLANT SUPPORTED- PROSTHESIS: AN INVITRO STUDY. 种植体支持的假体中使用的各种固位剂的固位性:一项体外研究。

The International journal of oral implantology : implantologist Pub Date : 2014-01-01 DOI: 10.1563/aaid-joi-d-12-00008.1

P. Garg, Malesh L. Pujari, P. D.R, S. Khare

{"title":"RETENTIVENESS OF VARIOUS LUTING AGENTS USED WITH IMPLANT SUPPORTED- PROSTHESIS: AN INVITRO STUDY.","authors":"P. Garg, Malesh L. Pujari, P. D.R, S. Khare","doi":"10.1563/aaid-joi-d-12-00008.1","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-12-00008.1","url":null,"abstract":"Abstract ABSTRACT:Purpose: Desired retrievability of cemented implant-supported fixed prosthesis makes the retentive strength of cementing agents an important consideration. The aim of the study was to evaluate the retentiveness of purposely-designed implant cement and to compare its retentiveness with dental cements that are commonly used with implant systems.Materials and method: Ten implant analogs were embedded in auto-polymerizing acrylic resin blocks and titanium abutments were attached to them. 50 standardized copings were waxed directly on the abutment and casted. The cements used were: 1. resin-bonded zinc oxide eugenol cement (Kalzinol, DPI), 2. purposely-designed implant cement (Premier implant cement), 3. zinc phosphate cement (DeTrey Zinc, Dentsply), 4. zinc polycarboxylate cement (Poly-F, Dentsply) and 5. glass ionomer cement (GC Gold Label, GC corporation, Japan). After cementation, each sample was subjected to a pull-out test using universal testing machine and loads required to remove the crowns were recorded. The mean values and standard deviations of cement failure loads were analyzed using ANOVA and Bonferroni test.Results: The mean values (±SD) of loads at failure (n = 10) for various cements were as follows (N): resin-bonded zinc oxide eugenol cement 394.62 (±9.76), Premier implant cement 333.86 (±18.91), zinc phosphate cement 629.30 (±20.65), zinc polycarboxylate cement 810.08 (±11.52) and glass ionomer cement 750.17 (±13.78).Conclusions: The results do not suggest that one cement type is better than another, but they do provide a ranking order of the cements in their ability to retain the prosthesis and to facilitate its easy retrievability.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81700689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Does abutment collar length affect abutment screw loosening after cyclic loading? 循环加载后，基台环长是否影响基台螺丝松动?

The International journal of oral implantology : implantologist Pub Date : 2014-01-01 DOI: 10.1563/aaid-joi-d-14-00021

H. Siadat, Salma Pirmoazen, Elaheh Beyabanaki, M. Alikhasi

{"title":"Does abutment collar length affect abutment screw loosening after cyclic loading?","authors":"H. Siadat, Salma Pirmoazen, Elaheh Beyabanaki, M. Alikhasi","doi":"10.1563/aaid-joi-d-14-00021","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-14-00021","url":null,"abstract":"Abstract Background: Significant vertical space which has not been corrected with vertical ridge augmentation, may necessitate selection of longer abutments which would lead to an increased vertical cantilever.Purpose: This study investigated the influence of different heights of abutment collar on screw loosening of single-unit dental implants after cyclic loading.Material and methods: Fifteen implant-abutment assemblies each consisted of an internal hexagonal implant were randomly assigned to three groups. Three groups were arranged, Group1 consisted of five abutments with 1.5 mm gingival height (GH); Group2, five abutments with 3.5 mm gingival height, and Group3 consisted five abutments with 5.5 mm gingival height. Each specimen was mounted in transparent auto-polymerizing acrylic resin block and abutment screw was tightened to 35 N.cm with an electric torque wrench. After 5 minutes, Initial Torque Loss (ITL) was recorded for all specimens. Metal crowns were fabricated with 45oocclusal surface and were placed on the abutments. A cyclic load of 75 N and frequency of 1HZ was applied perpendicular to the long axis of each specimen. After 500000 cycles, Secondary Torque Loss (STL) was recorded. One way ANOVA analysis was used to evaluate the effects of abutment collar height before and after cyclic loading.Results: One-way ANOVA showed that ITL among the groups was not significantly different (P=.52), while STL was significantly different among three groups (P=.008). Post Hoc Tukey HSD Tests showed that STL values were significantly different between the abutments with 1.5 mm GH (Group1) and with 5.5 mm GH (Group3) (P=.007). Also, Paired comparison t-test showed that cyclic loading significantly influenced the STL in comparison with the ITL in each group. Conclusion: Within the limitation of this study, it can be concluded that increase in height of abutment collar could adversely affect the torque loss of abutment screw.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88764831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 28

Radiographic Evaluation of Narrow Diameter Implants after 5 years of clinical function: a Retrospective Study. 窄径种植体5年后临床功能的影像学评价:回顾性研究。

The International journal of oral implantology : implantologist Pub Date : 2013-05-24 DOI: 10.1563/AAID-JOI-D-10-00158

O. Geçkili, E. Mumcu, H. Bilhan

{"title":"Radiographic Evaluation of Narrow Diameter Implants after 5 years of clinical function: a Retrospective Study.","authors":"O. Geçkili, E. Mumcu, H. Bilhan","doi":"10.1563/AAID-JOI-D-10-00158","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-10-00158","url":null,"abstract":"Abstract The use of regular sized dental implants is generally recommended to ensure adequate bone to implant contact. However when the width of the edentulous crest is insufficient for the placement of a regular sized implant, the use of a narrow diameter implant (NDI) should be considered to prevent the use of invasive reconstruction techniques such as grafting procedures. The aim of the present study was to evaluate the survival and marginal bone levels of NDIs five years after prosthetic loading. One hundred and fifty-nine NDIs belonging to four brands (Straumann, Astra Tech, Biolok, Xive) in 71 patients were evaluated. Clinical and radiographic evaluations using digital panoramic radiography were carried out. Two implants failed and no progressive bone loss or periapical lesions were detected in the remaining 157 implants which brings an overall success rate of 98.74%. The mean marginal bone loss (MBL) was found as 1 mm on mesial and 0.98 mm on distal side of the implants. No statistically significant relationship was detected between patient age, gender, implant location, implant length, type of the prosthesis and MBL (P > 0.05). Among the 4 brands used, the MBL around Biolok implants were detected as the highest; but significantly higher than the MBL around only the Astra Tech implants (P < 0.05). The results of the present study indicated that NDIs can be a good solution for specific clinical situations where regular sized implants are not suitable.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85965910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 34

EFFECTS OF NONSTEROIDAL ANTIINFLAMMATORY DRUGS ON OSSEOINTEGRATION: A REVIEW. 非甾体类抗炎药对骨整合的影响综述。

The International journal of oral implantology : implantologist Pub Date : 2013-01-01 DOI: 10.1563/aaid-joi-d-13-00125.1

Francisco Isaac Fernandes Gomes, M. B. Aragão, V. Pinto, D. Gondim, F. C. Barbosa, Antonio Alfredo Rodrigues e Silva, M. Bezerra, H. Chaves

{"title":"EFFECTS OF NONSTEROIDAL ANTIINFLAMMATORY DRUGS ON OSSEOINTEGRATION: A REVIEW.","authors":"Francisco Isaac Fernandes Gomes, M. B. Aragão, V. Pinto, D. Gondim, F. C. Barbosa, Antonio Alfredo Rodrigues e Silva, M. Bezerra, H. Chaves","doi":"10.1563/aaid-joi-d-13-00125.1","DOIUrl":"https://doi.org/10.1563/aaid-joi-d-13-00125.1","url":null,"abstract":"Abstract The purpose of this study was to review the effects of nonsteroidal antiinflammatory drugs on osseointegration and determine whether they cause failures in dental implants and whether patients who use them chronically can receive dental implants safely.A bibliographic electronic search was performed using the Cochrane Library, PubMed, and Medline databases, selecting articles published between January 1982 and December 2012. The search included the following keywords, either alone or combined: \"non-steroidal anti-inflammatory drugs,\" \"dental implants,\" \"bone healing,\" and \"osteoprogenitor cells.\" The inclusion criteria were the following: randomized, double-blind, placebo-controlled clinical studies, in vivo animal model studies of osseointegration, and in vitro studies of the effects of these agents on osteoprogenitor cells. The literature search revealed 360 references. A total of 31 articles met the inclusion criteria, including two clinical trials, 20 animal studies, and nine osteoprogenitor cell studies. The clinical trials revealed that cyclooxygenase-1 (COX-1) inhibitors did not impair osseointegration. The animal studies showed that any drug that is capable of inhibiting COX-2 may impair the osseointegration process. The in vitro studies showed that COX-2 inhibitors are the most potent depressors of osseointegration at the cellular level. Caution must be taken when selecting COX-2 nonsteroidal antiinflammatory drugs during the postoperative period.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79211992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Full-Mouth Rehabilitation of a Patient with Ectodermal Dysplasia Patient with Dental Implants. 外胚层发育不良患者种植牙的全口康复。

The International journal of oral implantology : implantologist Pub Date : 2012-11-19 DOI: 10.1563/AAID-JOI-D-12-00072.1

C. Koyuncuoğlu, Suleyman Metin, Isil Minoglu-Saylan, Kerem Calisir, O. Tuncer, Kantarci Alpdogan

{"title":"Full-Mouth Rehabilitation of a Patient with Ectodermal Dysplasia Patient with Dental Implants.","authors":"C. Koyuncuoğlu, Suleyman Metin, Isil Minoglu-Saylan, Kerem Calisir, O. Tuncer, Kantarci Alpdogan","doi":"10.1563/AAID-JOI-D-12-00072.1","DOIUrl":"https://doi.org/10.1563/AAID-JOI-D-12-00072.1","url":null,"abstract":"Abstract Oral findings in patients with ectodermal dysplasia (ED) include complete or partial hypodontia, anodontia, loss of vertical dimension of occlusion, protuberant lips, malformed and widely spaced conical-shaped teeth and underdeveloped alveolar ridges. These patients present a substantial challenge in dental treatment. This case report presents oral rehabilitation of a 22-year-old male patient diagnosed with ED using an implant-tooth supported telescopic partial denture at mandible and a tooth supported telescopic partial denture at maxilla. Implants in the mandible were placed at the sites of the right and left lateral incisor teeth. Following implant placement, the remaining buccal bone dehiscence was filled with deproteinized bovine bone graft and covered with resorbable membrane. To manage the vestibular insufficiency and to increase the keratinized mucosa in maxilla, bilateral acellular dermal matrix allograft was used on the right and left buccal aspects. Treatment described here improved the patient's functional and esthetic status while significantly restoring his oral health and self-esteem.","PeriodicalId":77634,"journal":{"name":"The International journal of oral implantology : implantologist","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78052997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

SPLINTED ZIRCONIA FIXED PARTIAL DENTURE SUPPORTED BY MINI IMPLANTS IN THE POSTERIOR MANDIBLE: A CASE REPORT. 后下颌微型种植体支撑氧化锆夹板固定局部义齿1例。

The International journal of oral implantology : implantologist Pub Date : 2012-10-22 DOI: 10.1563/AAID-JOI-D-12-00043.1

A. Mascolo, P. Patel

引用次数: 1