Treatment Outcomes Based on Patient’s Oral Health Related Quality of Life (OHRQoL) after Receiving Conventional Clasp or Precision Attachment Removable Partial Dentures in Distal Extension Cases: A Randomized Controlled Clinical Trial

Abstract

Purpose: To compare the effect of two treatment options in mandibular Kennedy class I cases regarding oral health related quality of life (OHRQoL) and the biting force, removable partial dentures retained by either precision attachment (PA-RPD) or clasps (C-RPD)Materials and methods: The study included 32 partially edentulous patients which 16 patients received PA-RPD (OT Cap Attachment) and 16 patients received C-RPD. All the patients in both groups were asked to fill the OHRQoL questionnaire after 1 week (baseline), 3 months, 6 months and 12 months after prosthesis insertion. Biting force was measured using the i-load Star Sensor one week, 3 months, 6 months and 1 year after partial denture insertion for all patients in both groups. Statistical analysis comprised Mann Whitney U test, Friedman’s test, Dunn’s test and Chi-square test.Results: The results of OHRQoL revealed that at the baseline, 3 months and 6 months the PA-RPD showed statistically significant lower mean total OHIP-14 score than the C-RPD. However, after 12 Monthes , there was no statistically significant difference between total OHIP-14 scores in the two groups. Concerning the biting force there was no statistically significant difference between the two groups.Conclusion: Within the limitations of this study it was concluded that the OHRQoL of both the PA-RPD and the C-RPD was comparable after 12 months. Similarly the biting force was the same for both treatment options.

A within-subject comparison of the conventional clasp-retained with attachment-retained removable partial dentures

“…The simplicity of manipulation, effective resiliency that ensures a stress-breaking function, and reducing the torque on the abutment teeth are among the main reasons for selecting this type of attachment. 35 …”

The effect of different framework s material on strain induced in distal abutment in mandibular Kennedy s class II: an in-vitro study

“…This led to the development of attachments whether precision or resilient to help give more esthetic results. The advantage of resilient attachment is that it dissipates forces permitting denture base movement towards the tissues during function leading to a decrease in the torque falling on the abutments [27][28][29].…”