# Effect of Mini Implants Supported Overdentures versus Conventional Implant after Bone Expansion in Thin Mandibular Ridge on Patient Satisfaction: Randomized Clinical Trial

- **Type:** Thesis
- **Authors:** Gaballa OA
- **Published in:** PhD thesis in Prosthodontics, Faculty of Dentistry, Cairo University
- **Year:** 2021
- **Institution:** Cairo University
- **Full text:** https://clinicaltrials.gov/study/NCT03326453
- **Keywords:** Prosthodontics, Mini-implants, Implant overdenture, Ridge splitting, Bone expansion, Patient satisfaction, Randomized clinical trial

## Abstract

Doctoral thesis supervised by Prof. Hamdi Abo El Fotouh Hamed and Assoc. Prof. Ahmed Emad Fayyad (Cairo University) and Dr. Mohamed Marwan Rahhal (Fayoum University). Thirty-six patients with thin mandibular ridges from the outpatient clinic of the Prosthodontics Department, Cairo University, first received conventional complete dentures and were then randomized into two groups of 18. The intervention group received two mini-implants (2.5 mm wide, 10 mm long) in the canine region; the comparator group received two conventional implants in the canine region after ridge splitting with discs and engine-driven expanders, placed with a two-stage protocol and three months of healing. Both groups received mandibular overdentures retained by ball abutments. Satisfaction (overall, stability, aesthetics, chewing efficiency) was recorded with a VAS questionnaire, and bone height changes were measured on standardized long-cone radiographs (Digora) at baseline, 6 and 12 months. Both treatments improved satisfaction, with higher satisfaction in the mini-implant group; both groups showed bone resorption, considerably greater in the conventional implant group. Conclusion: a mandibular overdenture retained by two mini-implants is a successful option with high patient satisfaction and less bone height change, and may be easier and less traumatic than ridge expansion in thin ridges. Published as Gaballa et al., Open Access Maced J Med Sci 2021;9(D):300-313 (doi:10.3889/oamjms.2021.7126). Trial registration: ClinicalTrials.gov NCT03326453.

## Cite this work

- APA 7: Gaballa, O. A. (2021). Effect of Mini Implants Supported Overdentures versus Conventional Implant after Bone Expansion in Thin Mandibular Ridge on Patient Satisfaction: Randomized Clinical Trial [Doctoral dissertation, Cairo University]. https://clinicaltrials.gov/study/NCT03326453
- Vancouver: Gaballa OA. Effect of Mini Implants Supported Overdentures versus Conventional Implant after Bone Expansion in Thin Mandibular Ridge on Patient Satisfaction: Randomized Clinical Trial [dissertation]. Cairo University; 2021.
- Harvard: Gaballa, O.A. (2021) Effect of Mini Implants Supported Overdentures versus Conventional Implant after Bone Expansion in Thin Mandibular Ridge on Patient Satisfaction: Randomized Clinical Trial. PhD thesis. Cairo University. Available at: https://clinicaltrials.gov/study/NCT03326453.

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Source: https://gaballa.org/research/effect-of-mini-implants-supported-overdentures-versus-conventional-implant-after-bone-expansion-in-thin-mandibular-ridge