Oral Biol Res.  2022 Mar;46(1):29-35. 10.21851/obr.46.01.202203.29.

Analysis of factors affecting the long-term status of adjacent and antagonistic teeth in relation to dental implants

• Kim HR
• Kim YG
• Suh JY
• Lee JM

• KMID: 2527538
• DOI: http://doi.org/10.21851/obr.46.01.202203.29

Abstract

The aim of this study is to investigate factors that affect the prognosis of adjacent and antagonistic teeth after an implant restoration. In total, 102 implant placement sites of 91 patients who underwent implant placement in Kyungpook National University Dental Hospital were included in this study. The average follow-up period was 68.27 months, whereas the maximum was 136 months. The cause of the previous extraction and implant-related factors were investigated. Radiographic evaluations were performed after the surgery and prosthetic treatment. Extraction and other treatments, including restorative or endodontic treatment of the antagonistic and adjacent teeth, were analyzed during the follow-up period. The chi-square test and Fisher exact test were used to analyze which factors could affect the implant prognosis. Of the studied antagonistic teeth, a total of 4.9% were treated and 12.7% were extracted. Furthermore, of the studied adjacent teeth, a total of 2.9% underwent treatment and 3.9% were extracted. The causes of previous extractions and types of restoration materials showed a significant difference in the treatment rate of adjacent teeth (p=0.05). Furthermore, implant surface types showed a significant difference in the extraction rate of antagonistic teeth (p=0.05). In conclusion, it can be suggested that the cause of the previous extraction and the material of the implant restoration may affect the prognosis of the teeth adjacent to the implant. Moreover, a specific type of implant surface may be a risk factor for antagonistic teeth.

Keyword

Dental implants; Dental occlusion; Survival rate; Tooth extraction; Tooth injuries