0steointegration of orthodontic microscrew implants under immediate loading in dogs
10.3321/j.issn:1002-0098.2008.07.015
- VernacularTitle:不同种植方法对即刻负载正畸种植体骨结合的影响
- Author:
Yan CHEN
1
;
Wen-Ting ZHAO
;
Kyung HEE-MOON
Author Information
1. 内蒙古医学院附属医院
- Keywords:
Histology;
Implant anchorage;
Osseointegration
- From:
Chinese Journal of Stomatology
2008;43(7):431-433
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the osteointegration of with self-drilling and self-tapping microscrew implants under immediate loading histomorphometrically. Methods The buccal side of upper and lower jaws of three dogs was chosen as implant receipt site. Each dog accepted 8 implants (4 self-drilling and 4 self-tapping implants). Approximately 1.47-1.96 N continuous and constant forces were immediately applied between two microscrew implants with nickel-titanium coll spring for 9 weeks. Undecalcified sections of implants and surrounding tissue were studied with light microscope and fluorescent microscope. Results Osteointegration was seen in all samples and no fibrous tissue was seen between bone and implant. More original bone was seen in self-drilling group. Modeling and remodeling were more active in self-tapping group. Bone-to-implant contact values were statistically significant higher in self-drilling group[(41.7±10.7)%]than in self-tapping group[(25.9±8.0)%,P<0.01]. Conclusions Immediate loading had no influence on osteointegration in both serf-drilling and self-tapping groups. The rates of bone-to-implant contact were higher in self-drilling group.
