A Prospective Multicenter Clinical Study on the Efficiency of Detachable Ball- and Spring-retained Implant Prosthesis

Overview

Journal J Adv Prosthodont

Specialty Dentistry

Date 2023 Sep 4

PMID 37662852

Authors

Min-Jung Kim

Won-Tak Cho

Su-Hyun Hwang

Ji-Hyeon Bae

Eun-Bin Bae

June-Sung Shim

Jong-Eun Kim

Chang-Mo Jeong

Jung-Bo Huh

Affiliations

Soon will be listed here.

Abstract

Purpose: This prospective clinical study was conducted to evaluate the clinical usefulness of the freely detachable zirconia ball- and spring-retained implant prosthesis (BSRP) through a comparative analysis of screw- and cement-retained implant prosthesis (SCRP).

Materials And Methods: A multi-center, randomized, prospective clinical study evaluating the clinical usefulness of the detachable zirconia ball- and spring-retained implant prostheses was conducted. Sixty-four implant prostheses in 64 patients were examined. Periodic observational studies were conducted at 0, 3, 6, and 12 months after delivery of the implant prosthesis. Factors such as implant success rate, marginal bone resorption, periodontal pocket depth, plaque and bleeding index, and prosthetic complications were evaluated, respectively.

Results: During the 1-year observation period, all implants survived without functional problems and clinical mobility, showing a 100% implant success rate. Marginal bone resorption was significantly higher in the SCRP group than in the BSRP group only at the time of implant prosthesis delivery ( = .043). In all observation periods, periodontal pocket depth was slightly higher in the BSRP group than in the SCRP group, but there was no significant difference ( > .05). The modified plaque index (mPI) scores of both groups were moderate. Higher ratio of a score 2 in modified sulcus bleeding index (mBI) was observed in the BSRP group in the 6- and 12-months observation.

Conclusion: Within the limitations of this study, the newly developed zirconia ball- and spring-retained implant prosthesis could be considered as an applicable and predictable treatment method along with the existing screw- and cement-retained prosthesis.

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