Observational studyBMJ open2026
Factors influencing dentists' choice of restorative materials for occlusal cavities: a cross-sectional study from Palestine.
Observational study in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo assess the factors influencing dentists' choice of restorative materials for posterior restorations, with a particular emphasis on the perceived influence of social media on patient preferences among general dental practitioners in Palestine.
designCross-sectional web-based survey. PARTICIPANTS/
settingA total of 550 general dentists practising in Palestine were invited between May and December 2023 through convenience and snowball sampling via social media platforms; 390 responded, and 350 complete responses were included in the final analysis.
interventionNo specific intervention was applied; this was an observational, questionnaire-based study.
main outcome measuresDentists' selection of restorative materials (composite, amalgam or high-viscosity glass-ionomer cement (HVGIC)) for posterior restorations in relation to tooth type, patient age, oral hygiene, moisture control, financial status and social media influence. STATISTICAL ANALYSIS WAS PERFORMED: Descriptive statistics, χ² tests and multinomial logistic regression were used to examine associations and control for potential confounders.
resultsMaterial selection varied significantly by tooth type (p<0.001), patient age (p<0.001), oral hygiene (p<0.001) and financial status (p<0.001). In the multivariable analysis, financial influence remained the only significant predictor of material choice, whereas gender, clinical experience, postgraduate training and perceived social media influence were not independent determinants. Composite resin was preferred for premolars and aesthetically driven cases, whereas amalgam was favoured for molars and for patients with poor hygiene or inadequate moisture control. HVGICs were selected for mainly children (60%) and elderly patients (39%). Most dentists perceived that social media strongly influenced their patients' preferences (p<0.0001), with 97% of dentists reporting believing that their patients' preferences were due to social media.
conclusionPatient-related factors were the main determinants of material selection, whereas practitioner demographics played a minimal role. HVGICs are preferred for paediatric and elderly patients because of their suitability for age-specific clinical needs. The influence of social media, assessed in this study as dentists'
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