Preliminary Registration Detail

Research Registry No : PLRID-00673_V1
 
Postgraduate Research : local
 
Name of University : University Of Dental Medicine, Mandalay
 
Degree : M.D.Sc.
 
University Departmental Research : Yes
 
Name of University : University of Dental Medicine, Mandalay
 
Department : Department of Prosthodontics
 
Registration Date : 2020-11-24
 
Principle Investigator : Nay Nwe Htun
 
Co-Investigators :
 
Title of Research : Effectiveness of removable partial dentures on masticatory performance and oral health-related quality of life in shortened dental arch patients
 
Field of Research : Prosthodontics
 
Preliminary Research Design : Experimental Study
 
Preliminary Research Type : Applied
 
Preliminary Justification : Justification When tooth replacement is required for patients with SDA, RPDs, CFPDs and IFPDs can be utilized. Treatment with RPDs is the most common of these options, because it is non-invasive and inexpensive (Fueki et al., 2011). However, treatment with RPDs has a high biological cost with high caries incidence and periodontal breakdown of abutment teeth (Zarb & MacKay, 1980; MacEntee, 1993). Therefore, another alternate option is utilization of the SDA concept which aims to provide functional dentition without the need for an RPD (Kayser, 1981). The SDA concept in which missing molars are not restored is widely accepted among dentists. Not restoring SDA with distal extension RPD is due to the potential risk for deterioration of abutment teeth, not contributing to long-term stable occlusion, and perceived limited added value resulting in not wearing the RPD. Nonetheless, it has been criticized because loss of molars is associated with reduced MP and has been reported to lead to mandibular displacement and various changes in the body. SDA has also been suggested to be associated with an increased risk for changes in the temporomandibular joint (TMJ) (Kanno & Carlsson, 2006). Therefore, restoring SDA with an RPD is for improvement of chewing function and rehabilitation of posterior support. Subjects with (extremely) SDA had 30 to 40% reduced MP and distal extension RPDs could compensate this reduction partially (some 50%) (Liang et al., 2015; Moore & McKenna, 2016). The SDA concept is still controversial issue. In case of patient who seeks for restoration of loss molars, whether to replace or better not to replace is in doubt for most of the clinicians. There is no strong evidence in clinical decision making for patients with SDA. The aim of this study is to evaluate the effectiveness of distal extension RPDs on MP and OHRQoL in SDA patients. The clinical significance of this study is that distal extension RPDs in subjects with SDA improve both MP objectively and OHRQoL subjectively.
 
Preliminary Aim : To study the effectiveness of removable partial dentures (RPDs) on masticatory performance and oral health-related quality of life (OHRQoL) in shortened dental arch (SDA) patients
 
Preliminary Objectives : 1. To measure the masticatory performance of the SDA patients before and after rehabilitation with removable partial dentures (RPDs) 2. To measure the oral health-related quality of life (OHRQoL) in patients with shortened dental arches before and after rehabilitation with removable partial dentures (RPDs) 3. To compare the masticatory performance of the SDA patients before and after rehabilitation with removable partial dentures (RPDs) 4. To compare the oral health-related quality of life in patients with shortened dental arches before and after rehabilitation with removable partial dentures (RPDs)
 
Preliminary Sample Size : Twenty Mandibular partially edentulous patients attending the Department of Prosthodontics, University of Dental Medicine, Mandalay
 
Preliminary Study Duration : One year (September, 2019 to August, 2020)
 
Preliminary Study Area : The study was carried out at the Department of Prosthodontics, University of Dental Medicine Mandalay.
 
Preliminary Study Method : Quasi experimental study with Consecutive sampling method
 
Preliminary Research Outcome : Rehabilitation with removable partial dentures can significantly improve objective masticatory performance and subjective oral health-related quality of life in mandibular shortened dental arch patients.
 
Preliminary Research Finding : There are statistically significant improvement in masticatory performance and oral health-related quality of life in mandibular shortened dental arch patients after rehabilitation with removable partial dentures.
 
Preliminary Progress Report : The data were analyzed.
 
Study Starting Date : 2019-09-02
IRB/PRC/ERC Approval Date : 2019-09-05
 
Placement of IRB/PRC/ERC : University of Dental Medicine, Mandalay, Myanmar
 
IRB/PRC/ERC Approval Letter/Document : 24112020154757ERCapproval.pdf
 
Pre-existing Registration ID : -
 
Pre-existing Name of Organization : -
 
Pre-existing Name of Organization Website : -