The Korean Academy of Oral and Maxillofacial Implantology最新文献

Comparison of Mechanical Properties of Milled and Casted Cobalt-Chromium Alloys Using Three-point Bending Test 用三点弯曲试验比较铣削和铸造钴铬合金的力学性能

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-09-01 DOI: 10.32542/implantology.2019013

홍준기, Seong-Kyun Kim, Heo， SeongJoo, Koak， Jai Young, Jinsoo Ahn

{"title":"Comparison of Mechanical Properties of Milled and Casted Cobalt-Chromium Alloys Using Three-point Bending Test","authors":"홍준기, Seong-Kyun Kim, Heo， SeongJoo, Koak， Jai Young, Jinsoo Ahn","doi":"10.32542/implantology.2019013","DOIUrl":"https://doi.org/10.32542/implantology.2019013","url":null,"abstract":"Copyright © 2019. The Korean Academy of Oral & Maxillofacial Implantology This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. OPEN ACCESS Purpose: The objective of this study was to investigate the mechanical properties of CobaltChromium (Co-Cr) alloys made by conventional casting method and Computer-Aided Design/ Computer –Aided Manufacturing (CAD-CAM) milling method. Material and Methods: Co-Cr alloy specimens (n=8) were made by casting and milling methods. The size of the specimens was 34 mm × 13 mm × 1.5 mm, according to ISO 22674: 2016. Three-point bending test was conducted by universal testing machine, stress and strain values were obtained. Statistical significance was tested using the t-test. Results: Flexural strength of the milled sample was significantly lower than of casted (p < 0.05). Similarly, 0.2% yield strength of milled sample was also lower than of casted (p < 0.05). Conclusion: Although there is a significant difference in mechanical properties of milled and casted Co-Cr alloy, they are both are clinically acceptable.","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125476322","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

Mechanical Complications of Posterior Implant Restorations using CAD/CAM Titanium Customized Abutments: A Retrospective Study 使用CAD/CAM定制钛基牙修复后种植体的机械并发症:回顾性研究

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-09-01 DOI: 10.32542/implantology.2019012

Minyoung Yang, Jae-Seung Chang, Woo Ji, Sunjai Kim

{"title":"Mechanical Complications of Posterior Implant Restorations using CAD/CAM Titanium Customized Abutments: A Retrospective Study","authors":"Minyoung Yang, Jae-Seung Chang, Woo Ji, Sunjai Kim","doi":"10.32542/implantology.2019012","DOIUrl":"https://doi.org/10.32542/implantology.2019012","url":null,"abstract":"Copyright © 2019. The Korean Academy of Oral & Maxillofacial Implantology This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. OPEN ACCESS Purpose: The purpose of this retrospective study was to evaluate the incidence of mechanical complications of the posterior implant-supported fixed dental prosthesis (p-ISFDP) using computeraided design and computer-aided manufacturing (CAD/CAM) titanium customized abutments and to evaluate the influencing factors on complications. Material and Methods: The incidence and consequences of mechanical complications in p-ISFDPs over a mean follow up period of 54.43 ± 6.24 months were assessed based on electronic documentations f rom 138 patients with 266 implants. All p-ISFDP utilized CAD/CAM titanium customized abutments, and were fabricated with cement-retained prostheses with occlusal screw access holes. Statistical analyses were performed to identify the risk factors of mechanical complications. Results: During the observation period (3 5 years), implant survival rates were 100%. Major mechanical complications were 8 abutment f ractures (3.01%), 8 screw loosenings (3.01%), 2 screw fractures (0.75%), 11 chipping or fractures of veneering materials (5.58%), 23 decementations of the superstructure (11.68%). The relationship between the incidence of mechanical complications and the possible factors were not statistically significant(p > .05). Conclusion: There is no significant difference between each mechanical complication and the risk factors. P-ISFDP fabricated with CAD/CAM titanium abutments is a clinically acceptable treatment.","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125459023","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

Orocutaneous Fistula after Implant Placement with Sinus Floor Elevation via Transalveolar Approach: A Case Report 经牙槽入路鼻窦底提升种植体置入后口皮瘘1例

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-09-01 DOI: 10.32542/implantology.2019014

Ji-Hyun Kim, Kwan-Soo Park

{"title":"Orocutaneous Fistula after Implant Placement with Sinus Floor Elevation via Transalveolar Approach: A Case Report","authors":"Ji-Hyun Kim, Kwan-Soo Park","doi":"10.32542/implantology.2019014","DOIUrl":"https://doi.org/10.32542/implantology.2019014","url":null,"abstract":"Copyright © 2019. The Korean Academy of Oral & Maxillofacial Implantology This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. OPEN ACCESS There have been several case reports about a formation of orocutaneous fistula associated with odontogenic or implant infection. This case is about a rapid formation of an orocutaneous fistula, which hardly can be seen, only 7 days after implant placement with sinus floor elevation via transalveolar approach. It was completely healed af ter incision and drainage, followed by administration of suitable antibiotics without removal of implant f ixture. Trauma during the operation and opportunistic infection by normal oral flora might be the cause of the fistula. It is important to maintain an aseptic environment before and during an operation with minimal invasive approach for prevention of complications including an orocutaneous fistula.","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128081346","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

Atraumatic Removal of Displaced Implant in the Fatty Bony Marrow 脂肪性骨髓内移位植入物的非创伤性移除

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-09-01 DOI: 10.32542/implantology.2019015

Buyanbileg Sodnom-Ish, M. Eo, Truc Thi Hoang Nguyen, Y. Cho, Myung-Joo Kim, S. Kim

{"title":"Atraumatic Removal of Displaced Implant in the Fatty Bony Marrow","authors":"Buyanbileg Sodnom-Ish, M. Eo, Truc Thi Hoang Nguyen, Y. Cho, Myung-Joo Kim, S. Kim","doi":"10.32542/implantology.2019015","DOIUrl":"https://doi.org/10.32542/implantology.2019015","url":null,"abstract":"Copyright © 2019. The Korean Academy of Oral & Maxillofacial Implantology This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. OPEN ACCESS A 53-year-old Korean female was referred to the Department of Oral and Maxillofacial Surgery at the Seoul National University Dental Hospital. The patient’s chief complaint and concern involved the occasional feeling of discomfort and pain in the region of the lower right second molar. Panoramic radiograph revealed a #47 implant fixture that was dislocated horizontally deep in the fatty degenerated area of the posterior mandible. A rare case of implant displacement into the fatty degenerated area of the posterior mandible caused inferior alveolar nerve (IAN) compression. Fatty degeneration is a condition that occurs in mostly elderly female patients due to aging and is inevitable. We recommend accurate preoperative evaluation using radiographic imaging techniques such as computer tomography and histopathological analysis for differential diagnosis. Endoscopic intraoperative examinations can reduce the invasiveness of the surgery and provide accuracy in examining the intactness of the IAN. This case report suggests the efficacy of the selected method of treatment and, the removal of the displaced implant and decompression of the IAN using endoscopic visualization followed by 8 months of healing and two-stage implant installation with guided bone regeneration in cases of related implant complications.","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127148360","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

Technical Note on Vestibuloplasty Around Dental Implants using Modified Edlan-Mejchar Technique: Case Series 应用改良Edlan-Mejchar技术对种植体周围前庭成形术的技术说明:病例系列

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-06-01 DOI: 10.32542/implantology.2019017

In-Woo Cho, Dae-Young Kang, S. Shin, Hyun-Seung Shin, Jung-Chul Park

{"title":"Technical Note on Vestibuloplasty Around Dental Implants using Modified Edlan-Mejchar Technique: Case Series","authors":"In-Woo Cho, Dae-Young Kang, S. Shin, Hyun-Seung Shin, Jung-Chul Park","doi":"10.32542/implantology.2019017","DOIUrl":"https://doi.org/10.32542/implantology.2019017","url":null,"abstract":"Vestibuloplasty is usually considered for improving retention and/or stability of denture by deepening vestibule and providing attached gingiva. The current case series aimed to describe the technical aspect of modified Edlan-Mejchar vestibuloplasty for improving the sof t tissue environment around dental implants. The technique was applied to 3 patients who had a lack of vestibule and keratinized peri-implant mucosa. A U-shape incision that opens toward the implant prosthesis was performed 1 mm deep into the mucosa. It comprises of 2 vertical incisions that start 3 mm apical point from the buccal and proximal side of the implant and 1 horizontal incision that roundly connects the apical ends of the vertical incisions. Split-thickness flap was reflected on the mucosal area surrounded by the U-shape incision in the coronal direction. Another horizontal incision was performed under the flap into the periosteum along the imaginary line with the coronal edge of the U-shape. An underlying mucoperiosteal flap was reflected with dull instrument and apically positioned so that the superficial split-thickness flap could be placed on the denuded bone surface. The surgical wound was stabilized by suturing, gauze pressing, or periodontal dressing. The deepened vestibule and newly formed attached mucosa around implants were maintained in all patients during the follow-up period ranging from 3 to 9 months. The vestibular deepening with attached Abstract Case Report","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124226395","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

Use of Model-Free and Zero-Setup ComputerGuided Implant Surgical Template for Partial Edentulous Cases 无模型和零设置计算机引导种植手术模板在部分无牙病例中的应用

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-06-01 DOI: 10.32542/implantology.2019019

Bongchun Hur, K. Oh, June-Sung Shim, Ji-Man Park

{"title":"Use of Model-Free and Zero-Setup ComputerGuided Implant Surgical Template for Partial Edentulous Cases","authors":"Bongchun Hur, K. Oh, June-Sung Shim, Ji-Man Park","doi":"10.32542/implantology.2019019","DOIUrl":"https://doi.org/10.32542/implantology.2019019","url":null,"abstract":"This case report presents the cases of single anterior missing and posterior free-end edentulous ridge with computer-guided implant placement on the day of visit through a special tray containing fiducial markers without model scan or intraoral scan data. Cone beam CT was taken after fixing the marker embedded ready-made tray with a photopolymerized resin material by light-curing in the patient's mouth. The implant location was planned on the registered CT data in the planning software. The tool path calculation for the milling machine was conducted in the computer-aided manufacture (CAM) software. The guide was completed by milling the drill hole in the special tray as designed. Although the preparation for the conventional implant guide surgery takes considerable time, including data acquisition and 3D printing, it was possible to produce a guide on the day of the patient visit without a separate procedure other than a CT scan through this protocol. Also, the transfer of the implant surgery plan, the process of scanning and 3D printing, was omitted, thereby reducing the positional error between the CT data and the actual guide.","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129557463","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

Removal of Dental Implants using Electrocautery: A Preliminary Report 电灼法去除牙种植体:初步报告

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-06-01 DOI: 10.32542/implantology.2019016

Se-Jin Park, Sang-Hoon Kang

{"title":"Removal of Dental Implants using Electrocautery: A Preliminary Report","authors":"Se-Jin Park, Sang-Hoon Kang","doi":"10.32542/implantology.2019016","DOIUrl":"https://doi.org/10.32542/implantology.2019016","url":null,"abstract":"Copyright © 2019. The Korean Academy of Oral & Maxillofacial Implantology This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. OPEN ACCESS Purpose: We introduce a technique using a monopolar electrocautery unit to eliminate failed dental implant fixtures. The goal of this research was to establish a protocol of electrocautery settings when removing dental implants. Materials and Methods: The study was conducted on f resh pork ribs. Implantium implants sized Ø4.5 × 10 mm were used. They (n = 45) were categorized into three groups according to the monopolar electric cautery power (coagulation mode) and adapted time as follows: 30 watt and 20 second (n = 15), 40 watt and 40 second (n = 15), and control group (n = 15). The torque in the removal of the implant fixtures, after monopolar electro cauterization directly inside the implant fixture, was also measured. Results: The mean torque [unit; N·mm] during removal of the dental implant fixtures with an Elcomed implant engine, after monopolar electrocauterization directly inside the implant fixture, for each group was 296 in the 30 watt and 20 second group and 184 in the 40 watt and 40 second group. The mean torque of removal of the dental implant fixtures was 279 N·mm in the control group. The mean torque was significantly lower in the 40 watt and 40 second group than in the other groups (p = 0.006). Conclusion: This method employs the principle of thermo-necrosis of the surrounding bone and weakening of the bone-implant interface. Monopolar electrocautery can be considered as an alternative method for the removal of failed or poorly positioned dental implants without the need of grinding the bony tissue surrounding the implant fixture.","PeriodicalId":370954,"journal":{"name":"The Korean Academy of Oral and Maxillofacial Implantology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123281310","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: 1

Full Mouth Rehabilitation on Fixed Prosthesis with Implant in Oligodontia Patient 缺牙固定假体种植体全口康复的研究

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-06-01 DOI: 10.32542/IMPLANTOLOGY.2019008

Jin Hong, Hyun-Seok Chae, Kyoung-A Kim, Seung-Geun Ahn, Jae-Min Seo

引用次数: 0

Progressive Hemifacial Atrophy After Implant Placement in Patients Taking Immunosuppressive Agents: Case Report 服用免疫抑制剂患者植入植入物后进行性面瘫:病例报告

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-06-01 DOI: 10.32542/implantology.2019018

Dae-Hoon Kim, Hak-Jin Kim, K. Jeon, Jong-Ki Huh

引用次数: 0

Considerations for Fabrication of CAD-CAM Abutments: Part II. Designing Abutment CAD-CAM基台制造的注意事项:第二部分。设计桥台

The Korean Academy of Oral and Maxillofacial Implantology Pub Date : 2019-06-01 DOI: 10.32542/IMPLANTOLOGY.2019010

Kyung-Ho Ko, Jong-Hyun Park, L. Cho

引用次数: 2