A retrospective study of survival rate of dental implants placed in osteoporosis patients

Geun Lee; Yoo-Jung Um; Ui-Won Jung; Chang-Sung Kim; Seong-Ho Choi; Kyoo-Sung Cho; Jung-Kiu Chai

doi:10.5051/jkape.2009.39.4.413

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Lee, Um, Jung, Kim, Choi, Cho, and Chai: A retrospective study of survival rate of dental implants placed in osteoporosis patients

Original Article

The Journal of the Korean Academy of Periodontology

The Journal of the Korean Academy of Periodontology 2009; 39(4): 413-423.

Published online: 31 December 2009

DOI: https://doi.org/10.5051/jkape.2009.39.4.413

A retrospective study of survival rate of dental implants placed in osteoporosis patients

Geun Lee, Yoo-Jung Um, Ui-Won Jung, Chang-Sung Kim, Seong-Ho Choi, Kyoo-Sung Cho, Jung-Kiu Chai

Department of Periodontology, Research institute of periodontal regeneration, College of Dentistry, Yonsei University, Korea.

Correspondence: Dr. Jung-Kiu Chai. Department of Periodontology, College of Dentistry, Yonsei University, Shinchon-dong 134, Seodaemum-gu, Seoul, 120-752, Korea. jkchai@yuhs.ac, Tel: 82-2-2228-8820, Fax: 82-2-392-0398

Received 25 November 2009 Accepted 1 December 2009

Abstract

Purpose

The presented study aims to evaluate the effects of osteoporosis on dental implants by analyzing a 12-year cumulative survival rate of implants placed in patients with osteoporosis.

Methods

37 patients with history of osteoporosis were selected from a pool of dental implant patients treated at the Department of Periodontology in Yonsei University Hospital between 1993 and 2007. The cumulative survival rate is quantified using data collected from 164 placed implants in the selected 37 patients.

Results

3 out of the 164 implants failed and the cumulative survival rate was observed at 95.1%. The survival rates of the implants according to patients' age were 97.41% (<60) and 100% (60≤. The lower survival rate was directly proportional to younger age, and this relationship is statistically significant (P<0.05). The survival rates of implants according to diagnostic criteria were 95.45% (osteopenia) and 98.59% (osteoporosis; 2 out of 142 implants placed in osteoporosis patients failed). The difference in the two survival rates is statistically significant (P<0.05). The survival rates according to the region of implants do not have statistically significant difference. The survival rates according to the different length and diameter of the implants do not have statistically significant difference. The survival rates of implants accompanied and not accompanied by bone augmentation were 92.11% and 100%, respectively. The difference in the two survival rates is statistically significant (P<0.05). The survival rates of implants placed in patients with and without history of medication for osteoporosis treatment are 96.67% and 99.04%, respectively. The difference in the two survival rates is statistically significant (P<0.05).

Conclusions

A high cumulative survival rate of dental implants, similar to one found in non-osteoporosis patients, is observed in osteoporosis patients, indicating the possibility that placing dental implants on patients with osteoporosis can be considered with high treatment predictability.

Keywords: dental implants, osteoporosis, survival rate

Figures and Tables

Table 1

Distribution of Subjects According to Gender and Age at the Time of Implant Placement

Table 2

Distribution of Implant System

Table 3

Distribution of Implant Surface

Table 4

World Health Organization (WHO): Diagnostic Criteria for Osteoporosis (WHO, with permission)

Abbreviation: BMC = bone mineral content; BMD = bone mineral density; SD = standard deviation.

Table 5

The Distribution of Patients with Diagnostic Criteria for Osteoporosis

Table 6

The Distribution of Implants According to Location

Table 7

The Distribution of Implants According to Diameter and Length

Table 8

The Distribution of Implants with Augmentation and Non Augmentation

Table 9

The Distribution of Implant with Osteoporosis Treatment at the Time of Implant Placement

Table 10

Life Table Analysis for Implant Survival

Table 11

Survival Rate of Placed Implants According to Age at the Time of Implant Placement

Table 12

Survival Rate of Placed Implants According to Diagnosis Osteopenia or Osteoporosis

Table 13

Survival Rate of Placed Implants According to Location

Table 14

Survival Rate of Placed Implants According to Diameter and Length

Table 15

Survival Rate of Placed Implants with Augmentation and Non Augmentation

Table 16

Survival Rate of Placed Implants with Osteoporosis Treatment and Non Treatment

Table 17

Analysis of Failed Implants

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