Development and validation of a questionnaire on perceived prosthodontic treatment needs in Malaysian adults

Psychometric properties of the Arabic version of the perceived prosthodontic treatment need scale: Exploratory and confirmatory factor analyses

“…The original 17-item PPTN was used in this study [ 19 ]. A group of academic experts and dental specialists with specialised knowledge in prosthodontics, restorative dentistry, and dental public health undertook the development of the original scale [ 19 ]. A thorough review of pertinent literature served as the basis for the scale’s construction.…”

“…A thorough review of pertinent literature served as the basis for the scale’s construction. Moreover, a series of qualitative interviews were also conducted in order to establish a comprehensive pool of relevant items [ 19 ]. The scale has sixteen items designed to assess the factors influencing the decision to pursue prosthodontic therapy, together with an additional item to evaluate the overall need for such treatment.…”

“…The third section of the questionnaire included the use of 17 psychometric items to assess the perceived prosthodontic treatment need. The questionnaire employed a five-point Likert scale; the first 16 items have response options ranging from "never" to "very often", similar to the original PPTN scale [ 19 ]. The last item, which measures the overall patients’ perceptions of prosthodontics treatment need, also has a five-point Likert scale ranging from “none” to “very high need.” The full questionnaire can be found in [see S2 File ].…”

“…While many existing validated instruments have been used to examine the demands of dental patients, there is only one scale specifically designed by prosthodontic academics and specialists perceived prosthodontic treatment needs (PPTN) to assess the treatment needs of patients seeking prosthodontic treatment. At present, the original PPTN scale developed by Soo et al [ 19 ] has been validated in the English language and has been examined among adult patients in Malaysia, and this new scale has not undergone translation or validation processes in any other language or nation [ 19 ]. Also, the psychometric properties, including factor structure stability and convergent and discriminant validity of the scale, were not conducted in the previous study [ 19 ].…”

“…At present, the original PPTN scale developed by Soo et al [ 19 ] has been validated in the English language and has been examined among adult patients in Malaysia, and this new scale has not undergone translation or validation processes in any other language or nation [ 19 ]. Also, the psychometric properties, including factor structure stability and convergent and discriminant validity of the scale, were not conducted in the previous study [ 19 ]. The psychometric properties of a scale refer to its characteristics that indicate its level of validity, reliability, and responsiveness [ 20 ].…”