|Ligature-induced peri-implant infection in crestal and subcrestal implants: a clinical and radiographic study in dogs|
|Huang, Baoxin1,2,3; Piao, Muzi3,4; Zhang, Li3; Wang, Xian&prime1; e(3)1; Xu, Li3; Zhu, Weidong3; Meng, Huanxin3|
|关键词||Dental Implants Peri-implantitis Bone Resorption Peri-implant Defect Dental Implant-abutment Design Implant Surface Animals Crestal Remodeling Subcrestal Positioning|
|WOS标题词||Science & Technology|
|研究领域[WOS]||Science & Technology - Other Topics|
|关键词[WOS]||SPONTANEOUS PROGRESSION ; TITANIUM IMPLANTS ; BONE CHANGES ; SURFACE CHARACTERISTICS ; ABUTMENT INTERFACE ; SUBMERGED IMPLANTS ; CYNOMOLGUS MONKEYS ; PLACEMENT DEPTH ; DENTAL IMPLANTS ; TAPER IMPLANTS|
Objective. The aim of this study was to assess the influence of implant-abutment interface (IAI) placement depths on peri-implant tissues in the presence of ligature-induced peri-implant inflammation.
Materials and Methods. Two implants with screwed-in IAIs (SI) and two implants with tapped-in IAIs (TI) were inserted in one side of the mandible in six dogs eight weeks after tooth extraction. Four experimental groups were constituted: SI placed crestally, SI placed 1.5 mm subcrestally, TI placed crestally and TI placed 1.5 mm subcrestally. After 12 weeks, the healing abutments were connected. Four weeks later, cotton floss ligatures were placed around the abutments to promote plaque accumulation. Clinical and radiographic examinations were performed at 0, 6 and 12 weeks after ligature placement. The effects of the IAI placement depths on clinical and radiographic parameters were assessed.
Results. The alterations of peri-implant probing depths, clinical attachment levels, distances from the IAI to the first bone-implant contact (IAI-fBIC) and depths of infrabony defect were significant larger in the subcrestal groups compared with the crestal groups during the plaque accumulation period. The alterations of clinical attachment levels, IAI-fBIC, depth of the infrabony defect and horizontal bone loss were not significantly different between the SI and TI groups after ligature placement.
Conclusion. Tissue destruction in subcrestal implants may be more serious than that in crestal implants in the presence of inflamed peri-implant mucosa.
|项目编号||81400550 ; B2014166|
|资助机构||National Natural Science Foundation of China ; Medical Science Research Foundation of Guangdong Province, China ; Bicon LLC Dental Implants, Boston, Massachusetts, USA|
|作者单位||1.Sun Yat Sen Univ, Hosp Stomatol, Guanghua Sch Stomatol, Dept Oral Implantol, Guangzhou 510275, Guangdong, Peoples R China|
2.Guangdong Prov Key Lab Stomatol, Guangzhou, Guangdong, Peoples R China
3.Peking Univ, Sch & Hosp Stomatol, Dept Periodontol, Beijing 100871, Peoples R China
4.Peking Univ, Sch & Hosp Stomatol, Dent Ctr 2, Beijing 100871, Peoples R China
|Huang, Baoxin,Piao, Muzi,Zhang, Li,et al. Ligature-induced peri-implant infection in crestal and subcrestal implants: a clinical and radiographic study in dogs[J]. PEERJ,2015,3.|
|APA||Huang, Baoxin.,Piao, Muzi.,Zhang, Li.,Wang, Xian&prime.,e.,...&Meng, Huanxin.(2015).Ligature-induced peri-implant infection in crestal and subcrestal implants: a clinical and radiographic study in dogs.PEERJ,3.|
|MLA||Huang, Baoxin,et al."Ligature-induced peri-implant infection in crestal and subcrestal implants: a clinical and radiographic study in dogs".PEERJ 3(2015).|