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学科主题: 口腔医学
题名:
Influence of Placement Depth on Bone Remodeling Around Tapered Internal Connection Implant: A Clinical and Radiographic Study in Dogs
作者: Huang, Baoxin; Meng, Huanxin; Piao, Muzi; Xu, Li; Zhang, Li; Zhu, Weidong
关键词: Animals ; bone resorption ; comparative study ; dental implants ; dental implant-abutment design ; radiography
刊名: JOURNAL OF PERIODONTOLOGY
发表日期: 2012-09-01
DOI: 10.1902/jop.2012.110617
卷: 83, 期:9, 页:1164-1171
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Dentistry, Oral Surgery & Medicine
研究领域[WOS]: Dentistry, Oral Surgery & Medicine
关键词[WOS]: IN-VITRO EVALUATION ; CRESTAL BONE ; ABUTMENT INTERFACE ; TITANIUM IMPLANTS ; INTERIMPLANT DISTANCES ; NONSUBMERGED IMPLANTS ; SUBCRESTAL PLACEMENT ; MICROGAP LOCATION ; MICROBIAL LEAKAGE ; TISSUES
英文摘要:

Background: The aim of this study is to evaluate the influence of placement depth on bone remodeling around implants with two different types of tapered internal implant-abutment interface (IAI): tapped-in (TI) tapered internal IAI and screwed-in (SI) tapered internal IAI in dogs.

Methods: The second, third, and fourth premolars and the first molar in mandibles of six beagle dogs were extracted. After 8 weeks, two SI implants and two TI implants were placed in one side of the mandible. There were four experimental groups: 1) SI placed crestally (SIC); 2) TI placed crestally (TIC); 3) SI placed 1.5 mm subcrestally (SIS); and 4) TI placed 1.5 mm subcrestally (TIS). Healing abutments were connected 12 weeks after implant surgery. Implants and teeth were brushed every second day during the healing period. Clinical and radiographic parameters were recorded at 4, 10, and 16 weeks after second-stage surgery.

Results: Differences between SI and TI implants inserted in the same vertical position were not significant for pen-implant probing depth (PD), clinical attachment level (CAL), or bone resorption (P>0.05). Subcrestal placement of both implants had greater PD and CAL compared to crestal groups. However, distance from IAI to the first bone-implant contact was lower in subcrestal groups compared to crestal groups (1.27 +/- 0.42 mm for SIC versus 0.46 +/- 0.26 mm for SIS, P<0.05; 1.36 +/- 0.31 mm for TIC versus 0.78 +/- 0.42 mm for TIS, P<0.05).

Conclusions: Tapered internal IAI configuration had no significant effect on crestal bone resorption. Moreover, subcrestal placement of tapered internal IAI had a positive impact on crestal bone preservation around the cervix of the implant. J Periodontot 2012;83:1164-1171.

语种: 英语
项目资助者: Bicon Dental Implants, Boston, Massachusetts
WOS记录号: WOS:000309091500012
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/62806
Appears in Collections:北京大学口腔医学院_牙周科_期刊论文

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作者单位: Peking Univ Sch & Hosp Stomatol, Dept Periodontol, Beijing 100081, Peoples R China

Recommended Citation:
Huang, Baoxin,Meng, Huanxin,Piao, Muzi,et al. Influence of Placement Depth on Bone Remodeling Around Tapered Internal Connection Implant: A Clinical and Radiographic Study in Dogs[J]. JOURNAL OF PERIODONTOLOGY,2012,83(9):1164-1171.
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