Patient-reported outcomes for the immediate loading of mandibular overdentures supported by two implants soon after implant surgery

Yuriko Komagamine; Manabu Kanazawa; Daisuke Sato; Maiko Iwaki; A Miyayasu; Shunsuke Minakuchi

doi:10.1016/j.jds.2021.06.021

Patient-reported outcomes for the immediate loading of mandibular overdentures supported by two implants soon after implant surgery

J Dent Sci. 2022 Jan;17(1):560-567. doi: 10.1016/j.jds.2021.06.021. Epub 2021 Jul 20.

Authors

Yuriko Komagamine¹, Manabu Kanazawa¹, Daisuke Sato^{2

3}, Maiko Iwaki⁴, A Miyayasu¹, Shunsuke Minakuchi¹

Affiliations

¹ Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
² Department of Implant Dentistry, School of Dentistry, Showa University, Tokyo, Japan.
³ Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
⁴ Oral Diagnosis and General Dentistry, University Hospital of Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.

Abstract

Background/purpose: No studies have comprehensively assessed short-term patient-reported outcomes after the provision of overdentures supported by two immediate implants. The purpose of this study was to evaluate short-term patient-reported outcomes for mandibular overdentures retained by ball attachments on two immediately loaded implants.

Materials and methods: Nineteen participants with mandibular edentulism were provided with overdentures retained by ball attachments on two immediately loaded, unsplinted implants. The participants' self-assessment of their dentures and oral health-related quality of life were evaluated with the 22-item Patient's Denture Assessment (PDA), and the 19-item Japanese version of the Oral Health Impact Profile (OHIP-EDENT), respectively. Patient satisfaction was measured on a 100 mm visual analogue scale. Assessments were conducted at baseline, and at 1 and 6 months after implant surgery.

Results: There were significant increases in the PDA "Lower denture" (P = 0.009) at 1 month, as well as "Function" (P = 0.002) and "Lower denture" (P = 0.009) scores at 6 months. Patient satisfaction was also significantly increased at 1 month (P = 0.007) and 6 months (P ≤ 0.000). Significant decreases were observed in the OHIP-EDENT "Physical pain" (P = 0.046) score at 1 month, as well as the summary score (P = 0.033), "Functional limitation" (P = 0.020) and "Psychological discomfort" (P = 0.019) scores at 6 months.

Conclusion: The use of two immediately loaded implants for lower mandibular complete overdentures is associated with improvements in patient's self-assessment of dentures, satisfaction, and oral health-related quality of life, up to 6 months after implant surgery.

Keywords: Immediate loading; Implant overdenture; Patient reported outcome.