Rigid and resilient investing materials - Expected movement of teeth in fabrication of complete dentures: An invitro study

Turakhia, Hetal; Ram, Sabita M

doi:10.4103/0972-4052.16337

Cited by 4 publications

(8 citation statements)

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“…Group 2: First a coring of dental stone around the teeth followed by investing in dental plaster. 11,12 First a thick core of type III dental stone was applied all around the artificial cross-linked acrylic teeth in the shape of a horseshoe (Fig. 4).…”

Section: Preparation Of the Samplesmentioning

confidence: 99%

“…The rest of the denture processing steps were common to both the groups (groups 1 and 2). The flasks were placed in boiling water for 5 minutes 12 to perform wax boil out. The casts and the denture molds were allowed to cool till room temperature.…”

Section: Ijoprdmentioning

confidence: 99%

“…Later the molds were allowed to cool for 1 hour. 12 Packing was done with heat cure polymethyl-methacrylate (DPI Heat Cure ® , Dental Products of India) following standardized procedure with a polymer: Monomer ratio of 3:1 by volume 13 (approximately 25 ml of polymer and 9 ml of monomer). 12 Trial closure was done to ensure complete closure of the flasks.…”

Section: Ijoprdmentioning

confidence: 99%

“…12 Packing was done with heat cure polymethyl-methacrylate (DPI Heat Cure ® , Dental Products of India) following standardized procedure with a polymer: Monomer ratio of 3:1 by volume 13 (approximately 25 ml of polymer and 9 ml of monomer). 12 Trial closure was done to ensure complete closure of the flasks. 12,14,15 The flasks were bench cured for 2 hours before placing in the water bath unit and a short curing cycle of acrylic resin was followed for processing.…”

Section: Ijoprdmentioning

confidence: 99%

“…12 Trial closure was done to ensure complete closure of the flasks. 12,14,15 The flasks were bench cured for 2 hours before placing in the water bath unit and a short curing cycle of acrylic resin was followed for processing. 14 The flasks were allowed to bench cool for 2 hours 16,17 and the dentures were divested carefully taking care that the dentures along with the cast were retrieved as a single unit.…”

Section: Ijoprdmentioning

confidence: 99%

See 4 more Smart Citations

A Comparative Study on the Effect of Two Different Investing Mediums on the Movement of Artificial Teeth during the Fabrication of Complete Denture: An in vitro Study

2011

International Journal of Prosthodontics and Restorative Dentistry

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Acrylic processing of waxed-up dentures is considered to be a crucial and technique-sensitive procedure. Even after investing a lot of time and clinical skill a definitive movement of teeth during and after processing has long been observed which lead to occlusal discrepancies and disturb the harmonious occlusal scheme achieved earlier. Shifting of the teeth can occur as a result of the investing procedures and investing materials. The objective of this study was to evaluate and compare the movement of artificial teeth in two-dimensions of space (anteroposterior and mediolateral) during processing of the waxed-up dentures using two different gypsum materials for investing. Methods: Two groups of 15 waxed-up maxillary dentures were processed using two different investing mediums (a) dental plaster and (b) combination of dental stone core and plaster mold. The artificial teeth movement was measured in the mediolateral and the anteroposterior directions between predetermined reference points before and after processing with the aid of a traveling microscope. The findings were statistically analyzed using parametric t-tests and ANOVA F-test. Results: Artificial teeth movement in both the anteroposterior and mediolateral direction was less with the use of investment combination of dental stone core and plaster mold when compared to the conventional method of investing with dental plaster. Conclusion: The dental stone core method is superior in view of the fact that it produces significantly less artificial teeth movement than the conventional method. However, neither of the investing methods is successful in completely preventing artificial teeth movement.

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Section: Preparation Of the Samplesmentioning

confidence: 99%

Section: Ijoprdmentioning

confidence: 99%