Oral Biol Res.  2024 Sep;48(3):75-81. 10.21851/obr.48.03.202409.75.

Comparative study of peri-implantitis between implant supported bridges and splinted crowns: a retrospective study

• Shin YJ
• Hwang SM
• Kim YG
• Suh JY
• Lee JM

• KMID: 2559685
• DOI: http://doi.org/10.21851/obr.48.03.202409.75

Abstract

The study was conducted to examine the prevalence and degree of peri-implantitis in implant-supported bridges compared to splinted crowns in 3-unit and 4-unit posterior edentulous areas. A total of 229 implant sites from 79 patients who had received implants at the Kyungpook National University Dental Hospital were evaluated. The observation period ranged from 2 to 12 years. Patient characteristics and implant-related factors were investigated. After surgery and prosthetic treatment, radiographic evaluations were performed. Also, to identify factors that could affect the prognosis of the implants, Fisher’s exact tests and chi-square were used. In addition, the mean distance between crestal bone levels and implant platform was compared between implant-supported bridges and splinted crowns using the Mann-Whitney U test. No statistically significant differences were found in the mean distances between implant platforms and bone levels in either restoration type. The prevalence of peri-implantitis was 15% in splinted crowns and 13% in bridges, with restoration type showing no significant association. However, middle implant showed the highest rate of peri-implantitis compared to other positions. Furthermore, bone augmentation and implant sites (maxilla or mandible) showed significant association with peri-implantitis. In conclusion, restoration type does not influence the prevalence or severity of peri-implantitis, but implant position affect the rate of peri-implantitis. Clinicians should consider bone quality when choosing between implant-supported bridges and splinted crowns.

Keyword

Dental implants; Implant-supported dental prosthesis; Peri-implantitis