Comparative Analysis Of Analogue Vs.Digital Surveying In Removable Partial Dentures: An Original Research

Abstract

Aim:This study aimed to compare and evaluate the accuracy of conventional analogue surveying using a mechanical dental surveyor with digital surveying performed through specialised software.

Materials and Methods:Fifteen participants diagnosed with Kennedy Class II partial edentulism requiring removable partial dentures were selected based on predetermined inclusion and exclusion criteria. Preliminary impressions were taken using irreversible hydrocolloid for analogue processing, and intraoral digital scans were obtained using a 3D scanner. Analogue casts were surveyed using the Wills mechanical surveyor (BEGO Paraflex), while digital scans were analysed with dedicated dental CAD software (AiDental). Key parameters, including survey lines and undercut measurements, were recorded for both techniques. Comparative data were analysed using SPSS software with Paired t-test, ANOVA, and Chi-Square tests; a p-value <0.05 was considered statistically significant.

Results:No statistically significant differences were observed between the analogue and digital techniques across all surveyed parameters (p>0.05). Both techniques demonstrated high consistency in identifying undercuts and guiding planes.

Conclusion:Digital surveying demonstrated accuracy comparable to conventional analogue methods. Owing to its efficiency, reproducibility, and integration with digital workflows, it presents a viable alternative in prosthodontic diagnostics, particularly for Kennedy Class II removable partial denture cases.