Research progress on the crown-implant ratio and clinical complications
10.12016/j.issn.2096-1456.2020.09.001
- Author:
XU Shulan
1
;
GUO Zehong
1
;
NING Yingyuan
1
;
GAO Yan
1
Author Information
1. Center of Oral Implantology, Stomatological Hospital, Southern Medical University
- Publication Type:Journal Article
- Keywords:
implant;
short implant;
crown-implant ratio;
implant survival rate;
biological complications;
bone resorption in the neck of implant;
peri-implantitis;
mechanical complications;
union crown repair
- From:
Journal of Prevention and Treatment for Stomatological Diseases
2020;28(9):545-550
- CountryChina
- Language:Chinese
-
Abstract:
The crown-root ratio (C/R) theory of natural teeth has been widely recognized in the field of stomatology,and has important clinical significance in predicting and assessing the prognosis of natural teeth as well as for abutment selection during denture restoration. In the past few decades, scholars have advocated for the implantation of implants as long in length as possible to improve the success rate according to the theory of crown-root ratio of natural teeth. However, with the application of short implants, our philosophy of implantation has changed, and the relationship between the crown-implant (C/I) ratio and complications has become one of the current research hotspots. In this paper, the concept of the crown-implant ratio, the research progress of the C/I ratio, the implant survival rate and clinical complications of implant restoration were reviewed and summarized, and the following suggestions were put forward: although most studies have shown no significant correlation between the C/I ratio and implant survival or marginal bone loss, this relationship may increase the risk of mechanical complications. A C/I < 3 and a crown length < 15 mm are recommended in implant restoration; when ultra-short implants are applied, the implant system can increase the bone-to-implant contact area, and splint prostheses such as crown or bridge are recommended.
- Full text:种植义齿冠根比与临床并发症.pdf
