Journal of Osseointegration最新文献_第9页

Comparison of accuracy of single-crown generated from digital and conventional impressions: an in vivo controlled trial. 数字印模和传统印模产生的单冠精度的比较:一项体内对照试验。

IF 0.4

Journal of Osseointegration Pub Date : 2019-06-14 DOI: 10.23805/JO.2019.11.02.05

A. D. Fiore, M. D. Francesco, C. Monaco, E. Stocco, P. Vigolo, E. Stellini

{"title":"Comparison of accuracy of single-crown generated from digital and conventional impressions: an in vivo controlled trial.","authors":"A. D. Fiore, M. D. Francesco, C. Monaco, E. Stocco, P. Vigolo, E. Stellini","doi":"10.23805/JO.2019.11.02.05","DOIUrl":"https://doi.org/10.23805/JO.2019.11.02.05","url":null,"abstract":"Aim : With the advance of digital technology, intraoral digital impression (DI) technique has become a major trend in prosthodontics with respect to traditional impression (TI) techniques; despite that, very few data are available concerning its accuracy. Thus, the purpose of this study was to compare the effectiveness of DI versus TI considering both marginal and internal gap (MG, IG, respectively) in cobalt-chromium (Co-Cr) single crowns manufactured by mean of computer-aided design and computer-aided manufacturing (CAD/CAM) technology. \u0000Material and Methods: Thirty posterior teeth were considered for this study. For each abutment tooth, sixty and thirty copings were produced with the aid of TI and DI, respectively. Thirty of the sixty copings of the TI-group were then randomly selected to be veneered and cemented onto existing abutments. The space existing between the internal surface of the coping and the abutment tooth was evaluated onto an in vitro replica; the MG and IG were measured by Scanning Electron Microscope. The data were analysed by the Wilcoxon test (1-tailed). \u0000Results: The mean MG was 75.04 μm (SD = 13.12) and 55.01 μm (SD = 7.01) for the TI-group and DI-group, respectively. As regards the mean IGs, the values recorded were of 78.36 μm (SD = 19.66) for the TI-group and 59.20 μm (SD=3.33) for the DI-group. A statistically significant difference was found between two groups (p-value = 0.001). \u0000Conclusions: Copings manufactured from DI showed better MGs and IGs with respect to copings produced from TI. However, both approaches produced clinically acceptable results.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77774413","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: 5

Analysis in vitro of the insertion torque of hybrid tapered implants with different types of instrumentation and two clinical cases report 不同内固定类型混合锥形种植体的体外植入扭矩分析及2例临床报告

IF 0.4

Journal of Osseointegration Pub Date : 2019-06-14 DOI: 10.23805/JO.2019.11.02.04

G. Thomé, S. Pires, R. Salatti, C. A. Cartelli, M. B. Moura, L. Trojan

{"title":"Analysis in vitro of the insertion torque of hybrid tapered implants with different types of instrumentation and two clinical cases report","authors":"G. Thomé, S. Pires, R. Salatti, C. A. Cartelli, M. B. Moura, L. Trojan","doi":"10.23805/JO.2019.11.02.04","DOIUrl":"https://doi.org/10.23805/JO.2019.11.02.04","url":null,"abstract":"Aim The aim of this study was to observe the behavior of the hybrid implants, evaluating the insertion test with different drilling protocols and present two case reports of hybrid implant placed in the upper arch. \u0000Materials and methods For the in vitro study 50 implants were placed in 2 different types of synthetic bone blocks composed of rigid solid polyurethane (high density, type I, and low density, type IV). The implants were divided into five groups (n=10): Group 1 (Test) hybrid/conical implants of 3.75 mm x 13 mm placed in a high density bone block with oversized instrumentation; Group 2 (Control) cutting/cylindrical of 3.75 mm x 13 mm, placed in a high density bone block with regular instrumentation; Group 3 (Test) hybrid/conical implants of 4.3 mm x 13 mm placed in a low density bone block with undersized instrumentation; Group 4 (Test) hybrid/conical implants of 4.3 mm x 13 mm placed in a low density bone block with regular instrumentation; Group 5 (Control) compact/conical implants of 4.3 mm x 13 mm placed in a low density bone block with regular instrumentation. Two cases are reported of hybrid implants placed in the maxilla with 12-month follow up. \u0000Results No significant difference was observed between hybrid/conical implants and the control group, according to final placement torque in high and low density bone. However, undersized instrumentation showed a significantly increased final torque placement for hybrid/conical implant. \u0000Conclusions Implant macrostructure, bone instrumentation technique influence the insertion torque for hybrid/conical implants. At the 12-month follow-up the implants were stable.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87170189","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

A systematic review of clinical trials on digital impression of prepared teeth 预备牙数字印模临床试验的系统回顾

IF 0.4

Journal of Osseointegration Pub Date : 2019-05-20 DOI: 10.23805/JO.2019.11.02.03

M. Pecciarini, A. Biagioni, M. Ferrari

{"title":"A systematic review of clinical trials on digital impression of prepared teeth","authors":"M. Pecciarini, A. Biagioni, M. Ferrari","doi":"10.23805/JO.2019.11.02.03","DOIUrl":"https://doi.org/10.23805/JO.2019.11.02.03","url":null,"abstract":"Aim The purpose of this review is to verify, in the existing literature, how many clinical studies have been conducted by performing intraoral digital impressions on prepared teeth. \u0000Materials and methods An electronic search was performed through Pubmed database, and the keywords were: “digital impression”, “intraoral digital impression”, “NOT implant”. The selection process started with a primary screening based on titles and abstracts. Afterward, full-texts were carefully read. Only studies in accordance with the inclusion criteria were selected. \u0000Results Only 16 studies dealing with the required criteria were included. Most of the studies evaluated marginal fit, impression time, dentists’ and patients’ evaluation of impressions and clinical outcome of CAD/CAM (Computer-aided design/Computer- aided manufacturing) fabricated single crown and multiple-fixed dental prosthesis using intraoral digital impression and the conventional impression. \u0000Conclusion In the literature there are only few in vivo clinical studies regarding digital intraoral impressions on prepared teeth. \u0000More studies about how the experience of the operator affects the accuracy of digital impression, and about the learning curve are needed, in order to provide clinical evidence on the practical use of this technology.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80065192","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: 4

Implant placement on bone granulation tissue. A case series 植体放置于骨肉芽组织上。案例系列

IF 0.4

Journal of Osseointegration Pub Date : 2019-05-20 DOI: 10.23805/JO.2019.11.02.02

B. Ferraz, V. T. Stuani, E. Passanezi, C. Damante, S. L. Greghi, M. L. Rezende, M. S. Zangrando, A. P. Sant'ana

{"title":"Implant placement on bone granulation tissue. A case series","authors":"B. Ferraz, V. T. Stuani, E. Passanezi, C. Damante, S. L. Greghi, M. L. Rezende, M. S. Zangrando, A. P. Sant'ana","doi":"10.23805/JO.2019.11.02.02","DOIUrl":"https://doi.org/10.23805/JO.2019.11.02.02","url":null,"abstract":"Aim Some of the main challenges in immediate implant placement are the lack of remaining bone for anchorage and socket decontamination in cases of teeth extracted due to infection. The objective of this case series is to describe a surgical technique that is also capable of maintaining bone architecture after extraction, while promoting the decontamination of the area and use the maximum potential of bone cells regenerative capacity. \u0000Case report Three cases were followed for periods ranging from 5 months to 5 years. An early implantation technique was used on all cases, with a waiting period of 21 days after tooth-extraction. This allows the implant placement on a new formed bone granulation tissue, rich in growth factors and osteoprogenitor cells. \u0000Results This approach allowed sites decontamination, formation of vital bone contacting the implant surface, primary stability, good three-dimensional positioning, and satisfactory prosthetic outcomes in all cases. \u0000Conclusions Implant placement on bone granulation tissue is a viable technique and should be considered as an option during treatment planning.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79193960","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

Is Topical Photodynamic Therapy with 5-ALA , using Tsai’s protocol , useful in the healing of oral potentially malignant disorders? A system-atic review of the literature 5-ALA局部光动力治疗，使用蔡的方案，对口腔潜在恶性疾病的愈合有用吗?系统的文献综述

IF 0.4

Journal of Osseointegration Pub Date : 2019-05-20 DOI: 10.23805/JO.2019.11.02.01

C. Moreschi, M. G. Grusovin, A. Cafaro, A. Gambino, S. Abati, E. Gherlone, P. Capparé, G. Gastaldi

{"title":"Is Topical Photodynamic Therapy with 5-ALA , using Tsai’s protocol , useful in the healing of oral potentially malignant disorders? A system-atic review of the literature","authors":"C. Moreschi, M. G. Grusovin, A. Cafaro, A. Gambino, S. Abati, E. Gherlone, P. Capparé, G. Gastaldi","doi":"10.23805/JO.2019.11.02.01","DOIUrl":"https://doi.org/10.23805/JO.2019.11.02.01","url":null,"abstract":"A \u0000Aim The present review was performed in order to assess the effect of topical photodynamic therapy with 5-ALA in pre-malignant lesions, using the Tsai’s protocol. \u0000Material and methods Studies, using the Tsai’s protocol with topical photodynamic therapy with 5-ALA, in oral potentially malignant disorders (oral leukoplakia, oral eryhtroplakia, oral verrucous leukoplakia, oral lichen planus) and with at least 5 months follow-up, were selected. The light source was: 635 nm laser light or LED red light at 635 nm. The main outcome measure was the healing of the potentially malignant disorders evaluated as Complete Response, Partial Response, No Response. \u0000Results Of the 12 eligible studies, five studies were included. Seven studies were excluded because they did not followe the Tsai’s protocol, 2 because the lesions were analyzed in other studies. The outcomes were: Oral Leucoplakia 7.7% complete response, 50.8% partial response, 41.5% no response; Oral Erythroplakia: 91,7% complete response, 8.3% partial response; Oral Verrucous Hyperplasia 100% complete response. \u0000Conclusions Within the limitation of the present systematic review, the selected studies suggested that 5-ALA PDT, using the fractionated Tsai’s protocol, had good results in the treatment of oral verrucous hyperplasia, less in erythroplakia and leukoplakia; this could be due to the different epithelial structure of the lesions. Further studies need to be conducted to confirm these data.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82118660","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

Comparative evaluation of hard and soft tissue parameters by using short and standard dental implants for prosthetic rehabilitation of posterior mandible: a split mouth study 使用短牙种植体和标准牙种植体修复后下颌骨的硬软组织参数的比较评价:一项裂口研究

IF 0.4

Journal of Osseointegration Pub Date : 2019-03-01 DOI: 10.23805/JO.2019.11.01.06

Dhananjay Yadav, Farhan Durrani, Faizia Rahman, P. Borang, Shivam Kesarwani, S. Karthickraj

{"title":"Comparative evaluation of hard and soft tissue parameters by using short and standard dental implants for prosthetic rehabilitation of posterior mandible: a split mouth study","authors":"Dhananjay Yadav, Farhan Durrani, Faizia Rahman, P. Borang, Shivam Kesarwani, S. Karthickraj","doi":"10.23805/JO.2019.11.01.06","DOIUrl":"https://doi.org/10.23805/JO.2019.11.01.06","url":null,"abstract":"Aim The length of fixtures is always standardized with the concept for better bone to implant contact and successful osseointegration. Lots of studies have justified the use of short implants of less than 10 mm as an alternative for resorbed ridges in maxilla and mandible. The present project was conducted to check the viability of short implants in complex prosthetic rehabilitations. \u0000Materials and methods Eleven patients received a total of 18 short implants (3.3/6 mm - 4.2/9.5mm) and 18 standard implants (3.75/11 mm and 4.5/11.5 mm) in the posterior mandible. Marginal bone loss was evaluated immediately after the delivery of the prosthesis, then after 3, 6, 12 and 18 months. Same measurements were done for standard implants as the study design was split mouth. \u0000Results The survival rate of short implants 18 months after prosthesis delivery was 94.4% and it was 100% for standard implants. There was no significant difference between implants at the time intervals of 6 and 18 month’s post-delivery of crowns and bridges. Mean crestal bone loss was 1.77±0.22 mm and 2.03±0.21 mm for short and standard implants respectively at 18 months of follow up, which was statistically significant. One short implant failure was seen before the loading of prosthesis. \u0000Conclusion Short implants may be considered as an alternative for complex augmentation procedures in mandible and maybe in maxilla too. Patient should be educated before for the reduced survival rate of short implants compared to standard implants.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75970848","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

Influence of cervical margin relocation and adhesive system on microleakage of indirect composite restorations 颈缘移位及黏附系统对间接复合修复体微渗漏的影响

IF 0.4

Journal of Osseointegration Pub Date : 2019-03-01 DOI: 10.23805/JO.2019.11.01.04

Serhat Köken, J. Juloski, M. Ferrari

{"title":"Influence of cervical margin relocation and adhesive system on microleakage of indirect composite restorations","authors":"Serhat Köken, J. Juloski, M. Ferrari","doi":"10.23805/JO.2019.11.01.04","DOIUrl":"https://doi.org/10.23805/JO.2019.11.01.04","url":null,"abstract":"Aim The aim was to evaluate the influence of the cervical margin relocation (CMR) and the adhesive system on the microleakage of indirect composite restorations with proximal margins located below the cemento-enamel junction (CEJ). \u0000 \u0000 \u0000 \u0000Materials and methods Standardized MOD cavities with proximal margins located 1 mm below CEJ were prepared in 20 human molars and divided into 2 groups. Mesial margins in both groups were elevated with a flowable composite. Distal margins were not elevated. Composite CAD/CAM overlays were cemented with a resin composite; in Group 1 in combination with a universal adhesive in selective enamel etch mode, whereas in Group 2 with a three-step total-etch adhesive. Differences in leakage either at mesial or distal adhesive interface were evaluated for statistical significance (P < 0.05). \u0000 \u0000 \u0000 \u0000Results In Group 1 statistically significant differences emerged in microleakage scores between CMR and non-CMR sites; higher scores were present at CMR sites. In Group 2 no statistically significant differences existed between CMR and non-CMR margins. When the non-CMR sites were compared between the two groups, significantly lower scores were observed in Group 1 compared to Group 2. \u0000 \u0000 \u0000 \u0000Conclusion The CMR technique and the adhesive system employed for luting indirect restorations might represent a significant factor affecting microleakage at the interface below CEJ.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88559538","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: 6

Odontogenic infections in the head and neck: a case series 头颈部的牙源性感染:一个病例系列

IF 0.4

Journal of Osseointegration Pub Date : 2019-03-01 DOI: 10.23805/JO.2019.11.01.05

M. Trimarchi, A. Galli, P. Capparé, Sabrina Dababou, R. Vinci, M. Bussi, E. Gherlone

{"title":"Odontogenic infections in the head and neck: a case series","authors":"M. Trimarchi, A. Galli, P. Capparé, Sabrina Dababou, R. Vinci, M. Bussi, E. Gherlone","doi":"10.23805/JO.2019.11.01.05","DOIUrl":"https://doi.org/10.23805/JO.2019.11.01.05","url":null,"abstract":"Introduction Odontogenic infections (OIs) are potentially severe complications resulting from untreated dental pathologies or incorrect dentistry procedures. They may involve paranasal sinuses and cervico-fascial spaces. Clinical picture can be misleading and relation with dental pathology unapparent, making their diagnosis challenging. \u0000Material and methods Data of 44 patients referred to San Raffaele Hospital (Milan) for acute severe or recalcitrant sinonasal/deep cervical OIs between January 2008 and January 2017 were retrospectively collected. Clear odontogenic origin was proved in all cases. Patient characteristics, etiopathogenesis, surgical approach and medical therapy were individually assessed. \u0000Results Main causes of OIs were implant placement (13/44, 29.6%) and caries (12/44, 27.3%), followed by dysodontiasis (8/44, 18.2%), tooth extraction (7/44, 15.9%), endodontic procedures (2/44, 4.5%) and sinus lift (2/44, 4.5%). A clear etiology was detectable in 27 patients (61.4%). Odontogenic maxillary sinusitis (32/44, 72.7%) was typically tackled by a multiportal approach, with transnasal endoscopic approaches combined with transoral ones. Cervico-fascial infections (12/44, 27.3%), instead, always required cervicotomic surgical drainage, frequently in urgent/emergent settings. A case of descending mediastinal spread was recorded. \u0000Conclusions High index of suspicion and effective collaboration between dental and ENT specialists are essential to promptly diagnose and treat OIs. Antibiogram-driven therapies and multiportal approaches are key elements of the current therapeutic strategy.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76474580","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: 6

A modified graftless sinus lift: case report 改良无移植物鼻窦提升术1例

IF 0.4

Journal of Osseointegration Pub Date : 2019-03-01 DOI: 10.23805/JO.2019.11.01.02

S. D'amato, N. Sgaramella, G. Tartaro, M. Santagata

{"title":"A modified graftless sinus lift: case report","authors":"S. D'amato, N. Sgaramella, G. Tartaro, M. Santagata","doi":"10.23805/JO.2019.11.01.02","DOIUrl":"https://doi.org/10.23805/JO.2019.11.01.02","url":null,"abstract":"Aim AAA (Alveolar Antral Artery) injuries are the most frequent intra-operative lesions occurring during maxillary sinus surgery. The aim of this work is to evaluate the role of preoperative CBCT and the effectiveness of piezosurgery to prevent bleeding. Furthermore, a modified Lundgren technique is presented, that can significantly reduce the risk of bleeding and of damages to maxillary sinus structures. \u0000Methods A case of maxillary sinus lift with immediate implants placement is reported. Preoperative CBCT scan allowed to study the course in the anterior-lateral sinus wall of the AAA and the variability of its patency. Antrostomy was performed with piezosurgery device. \u0000Results Through preoperative identification of the course of the artery and trough this modified piezosurgery technique, it was possible to preserve membrane and artery integrity. Schneider membrane therefore was detached from the sinus floor, and contextually three implants were positioned. \u0000Conclusions In the preoperative phase, a study with CBCT scan is suggested, in order to identify intraosseous arterial course, patency variability and the distance from alveolar ridge. Furthermore, it is strongly recommended the use of piezosurgery, to preserve vascular structures and soft tissues. A modified Lundgren technique can be useful to avoid the use of round bur and thus reduce the risk of perforation of the underlying structures.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80108349","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

Detecting bone changes along dental implants, after immediate or delayed loading, using digital subtraction on cropped panoramic radiographs. A prospective clinical trial with minimum 3-year follow up 检测沿牙种植体，立即或延迟加载后的骨变化，使用数字减法裁剪的全景x线照片。一项至少3年随访的前瞻性临床试验

IF 0.4

Journal of Osseointegration Pub Date : 2019-03-01 DOI: 10.23805/JO.2019.11.01.03

E. Andrikopoulou, S. Kourtis, S. Damaskos, K. Tsiklakis

{"title":"Detecting bone changes along dental implants, after immediate or delayed loading, using digital subtraction on cropped panoramic radiographs. A prospective clinical trial with minimum 3-year follow up","authors":"E. Andrikopoulou, S. Kourtis, S. Damaskos, K. Tsiklakis","doi":"10.23805/JO.2019.11.01.03","DOIUrl":"https://doi.org/10.23805/JO.2019.11.01.03","url":null,"abstract":"Aim The aim of this study was to assess bone changes along implants after immediate or delayed loading, using subtractions of digital images originated from cropped panoramic radiographs and visual evaluation. \u0000Materials and methods Eleven patients received 4 Ankylos implants interforaminal in the mandible. In 7 patients the implants were loaded immediately and 4 followed delayed loading. All patients were restored with a telescopic overdenture with Syncone abutments. From each patient 3 panoramic radiographs (PRs) were obtained: upon delivery of the restoration (T1), 6 months later (T2) and after 3 years (T3). 33 implants were finally selected. The radiographs were analyzed using the Emago® Software. The grey scale values were measured either manually (Stage A) or automatically (Stage B) in six areas (neck, middle and apex; both mesially and distally) along the implants’ sides to evaluate the bone density during clinical function. Images were also visually evaluated by five observers to detect bone changes at the cervical implant area. \u0000Results Strong positive correlation between the two stages (A and B) was found in all 3 examinations (Pearson’s r 0.84-0.98). The t-test showed no statistically significant differences in grey level values between immediate and delayed loading (p<0.05) and no statistically significant changes in the visual evaluation among implants undergoing either immediately or delayed loading (p<0.05). \u0000Conclusions Emago® is a valuable method for bone level assessment around implants’ neck. The grey value measurements of the bone adjacent to the implants that have been loaded either immediately or delayed do not significantly differ after 3 years of fuction. The visual assessment of the PRs images supports these findings.","PeriodicalId":42724,"journal":{"name":"Journal of Osseointegration","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81845025","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