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KMID : 1004520200360040232
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Journal of Dental Rehabilitation and Applied Science
2020 Volume.36 No. 4 p.232 ~ p.241
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Complications of implants confronting the extruded posterior teeth
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Jung Yeon-Wook
Lee Su-Yeon
Kim Hee-Jung
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Abstract
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Purpose: This study investigated the complications and patterns of implants that confronted with the extruded natural teeth.
Materials and Methods: Among patients who received implant treatment between 2006 and 2018 at Chosun University Dental Hospital, only implants that had a maintenance period of at least 5 years and that both implants and confronting natural teeth could be measured and compared on a radiograph were selected. They were divided into two groups. Group 1, experimental group consisted of Implants confronting the extruded natural posterior teeth (n = 167: maxilla (Group 1max) = 92, mandible (Group 1man) = 75) and Group 2, control group consisted of Implants confronting the normal natural posterior teeth (n = 656: maxilla (Group 2max) = 272, mandible (Group 2man) = 384).
Results: The incidence of complications between Group 1 and Group 2 was statistically significant. In particular, there was a statistically significant difference between the frequency of marginal bone loss and the amount of marginal bone loss.
Conclusion: The extruded natural tooth may cause more frequent complications including bone resorption in the opposing implant.
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KEYWORD
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extruded, complication, marginal bone loss, implant
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