Effects of implant-related variables on the marginal bone loss around dental implants

Dereci Ö., Mumcu E., Dereci O. N., Dayan S. Ç., Kosar Y. C., Fadhil S. M. T.

QUINTESSENCE INTERNATIONAL, vol.51, pp.118-126, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 51
  • Publication Date: 2020
  • Doi Number: 10.3290/j.qi.a43864
  • Journal Name: QUINTESSENCE INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CINAHL, EMBASE, MEDLINE, DIALNET
  • Page Numbers: pp.118-126
  • Keywords: alveolar bone loss, bone resorption, dental implants, implant-supported dental prosthesis, single-tooth dental implants, FOLLOW-UP, RATIO, LEVEL
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

Objective: Marginal bone loss (MBL), a prognostic parameter for implant success, is associated with implant- and patient-related variables. The purpose of this study was to analyze the effects of the crown-to-implant ratio and independent factors of implant diameter, implant length, implant type, location, and platform switching on distal and mesial MBLs at the 6-, 12-, 24-, and 36-month recall sessions of single crown implant-supported restorations. Method and materials: Radiographic and clinical data of patients treated with single crown implants were collected. MBL was measured at the baseline and recall sessions on panoramic radiographs. The crown-to-implant ratio was calculated by dividing the length of the crown by that of the dental implant. Results:The crown-to-implant ratio had a moderately positive correlation with distal MBL at the 6-month recall session (P < .05, r = 0.469) and a weakly positive correlation at the 12- (P < .05, r = 0.220), 24- (P < .05, r = 0.214), and 36- (P < .05, r = 0.250) month recall sessions. Distal and mesial MBL did not significantly differ among the four implant types at any recall session (P > .05).The crown-to-implant ratio had no significant correlation with mesial MBL at the 12-, 24-, or 36-month recall session (P > .05), and a moderately positive correlation at the 6-month recall session (P < .001, r = 0.434). Conclusions: MBL was similar among different implant types in the short and medium terms. There was a positive correlation between distal MBL and the crown-to-implant ratio.