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Prosthodontic outcomes of mandibular overdenture treatment with one or two implants: 4‐year results of a randomized clinical trial


de Resende, Gabriela Pereira; de Menezes, Eunice Ellen Gontijo; Maniewicz, Sabrina; Srinivasan, Murali; Leles, Cláudio Rodrigues (2023). Prosthodontic outcomes of mandibular overdenture treatment with one or two implants: 4‐year results of a randomized clinical trial. Clinical Oral Implants Research, 34(3):233-242.

Abstract

Objective: To assess the incidence of prosthodontic maintenance events and complications during 4 years of follow‐up after mandibular overdenture treatment with one or two implants.
Methods: Participants received one or two implants inserted in the midline (1‐IOD group) or the lateral incisor‐canine area bilaterally (2‐IOD group). Implants were loaded with an early loading protocol after 3 weeks. Programmed recall visits were scheduled at the 6‐, 12‐, 36‐, and 48‐month follow‐ups and nonprogrammed visits in case of prosthodontic complaints. The type of maintenance was registered, and the final treatment outcome was classified as successful, surviving, unknown, dead, repair, or retreatment.
Results: Forty‐seven participants, mean age 65.4 ± 8.6, 74.5% female, were included (1‐IOD = 23; 2‐IOD = 24) and 44 completed the 4‐year follow‐up. A total of 159 prosthodontic maintenance events occurred and 89 in unscheduled visits. The most common event was the need for minor modifications of the denture base due to sore spots in the oral mucosa (n = 56 in 31 patients), matrix activation (n = 54 in 34 patients), and overdenture fracture (n = 25 in 18 patients). A “successful” or “surviving” outcome could be attributed to 57.5% of cases, whereas 38.3% needed repair. No significant differences in the incidence of prosthodontic events or treatment outcomes were found between the two groups.
Conclusions: Findings show that 1‐IODs perform similar to 2‐IODs when considering the incidence of fractures and the need for prosthodontic maintenance, including adjustments of the overdenture and the attachment system.

Abstract

Objective: To assess the incidence of prosthodontic maintenance events and complications during 4 years of follow‐up after mandibular overdenture treatment with one or two implants.
Methods: Participants received one or two implants inserted in the midline (1‐IOD group) or the lateral incisor‐canine area bilaterally (2‐IOD group). Implants were loaded with an early loading protocol after 3 weeks. Programmed recall visits were scheduled at the 6‐, 12‐, 36‐, and 48‐month follow‐ups and nonprogrammed visits in case of prosthodontic complaints. The type of maintenance was registered, and the final treatment outcome was classified as successful, surviving, unknown, dead, repair, or retreatment.
Results: Forty‐seven participants, mean age 65.4 ± 8.6, 74.5% female, were included (1‐IOD = 23; 2‐IOD = 24) and 44 completed the 4‐year follow‐up. A total of 159 prosthodontic maintenance events occurred and 89 in unscheduled visits. The most common event was the need for minor modifications of the denture base due to sore spots in the oral mucosa (n = 56 in 31 patients), matrix activation (n = 54 in 34 patients), and overdenture fracture (n = 25 in 18 patients). A “successful” or “surviving” outcome could be attributed to 57.5% of cases, whereas 38.3% needed repair. No significant differences in the incidence of prosthodontic events or treatment outcomes were found between the two groups.
Conclusions: Findings show that 1‐IODs perform similar to 2‐IODs when considering the incidence of fractures and the need for prosthodontic maintenance, including adjustments of the overdenture and the attachment system.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Center for Dental Medicine > Klinik für Allgemein-, Behinderten- und Seniorenzahnmedizin
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > Oral Surgery
Uncontrolled Keywords:Oral Surgery
Language:English
Date:March 2023
Deposited On:29 Dec 2023 10:17
Last Modified:30 Apr 2024 01:45
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0905-7161
OA Status:Closed
Publisher DOI:https://doi.org/10.1111/clr.14036
Related URLs: (Publisher)
PubMed ID:36692124