Journal of Research and Advancement in Dentistry
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Year : 2018
Volume : Volume 8
Issue : Issue 1
Address for correspondence :
Dr. Suma.
Suma@gmail.com
Background: The final impression for a complete denture construction involves capturing of the vestibule with border molding technique and then taking an impression of the edentulous area. An ideal material should allow simultaneous molding of the borders such that number of insertions could be reduced and also there is no propagation of errors with simultaneous insertion. The present study was conducted with the aim to determine the retention force of impressions made by two different techniques. Materials and methods: Eight subjects seeking the hospital for prosthodontic rehabilitation for complete dentures were included in the study. The subjects between 50-60 years with well-formed residual alveolar ridges, no exostoses or undercuts, normal TMJ function, no disabling systemic condition were included in the study. Two trays were made for each patient. The trays were kept 2-3 mm short of the sulcus depth. Using the first tray border molding was done using sectional technique with the help of low fusing impression compound. A heavy viscosity siloxane was used to take secondary impression using second tray. Mean of three values was obtained. All the data obtained was arranged in a tabulated form and analyzed using SPSS software. Chi square test was used as a test of significance. Probability value of less than 0.05 was regarded as significant. Results: The present study enrolled 8 subjects, out of these there were 5 males and 3 females. The mean age of the subjects was 59.67+/- 3.89 years. In case 1 the mean retentive force by single step technique was 5.64 and with sectional technique was 6.21. In case 8 the mean retentive force by single step technique was 9.90 and with sectional technique was 9.52. The overall mean retentive force in single step was 8.34 and in sectional step was 9.14. Conclusion: As per our study, the sectional border molding technique appeared to be more retentive than single step technique.
Keywords: Edentulous, Impression, Secondary.
