PMID- 27434916
OWN - NLM
STAT- MEDLINE
DCOM- 20160915
LR  - 20211203
IS  - 0251-172X (Print)
IS  - 0251-172X (Linking)
VI  - 39
IP  - 153
DP  - 2016 Mar
TI  - Comparison of the linear dimensional accuracy of the maxillary denture teeth by 
      three flask closure methods. An in vitro study.
PG  - 14-22
AB  - PURPOSE: This laboratory study conducted to evaluate and compare the influence of 
      different flask closure methods on linear dimensional changes of standardized 
      simulated maxillary complete dentures. MATERIALS AND METHODS: Thirty casts were 
      made from a silicone mold representing an edentulous maxillary arch. Thirty 
      identical maxillary dentures were made and randomly assigned to 3 test groups (A, 
      B, C). In Group A, flasks were placed directly in pressure clamp after trial 
      closure. Group B: The final closure was done in a hydraulic press then 
      transferred to pressure clamp. Group C: After trial closure flask was positioned 
      between the two iron plates of the Restriction System flask closure (RSFC) 
      method. Then linear distances were measured three times before and after 
      polymerization: right incisor to left incisor (RI-LI), right premolar to left 
      premolar (RPM-LPM), right molar to left molar (RM-LM) and left incisor- to- left 
      molar (LI-LM) and right incisor- to- right molar (RI-RM) with the help of digital 
      caliper with an accuracy of 0.01mm. ANOVA and Tuckey's test were used to compare 
      the groups (p < 0.05). RESULTS: Inter molar (LM-RM) width showed the greatest 
      dimensional change after processing and Linear dimensions were not significantly 
      influenced by the packing procedure. CONCLUSION: Within the limitations of this 
      study, Restriction System flask closure (RSFC) method demonstrated a similar 
      performance in reducing the tooth movement when compared with other flask closure 
      methods. The posterior region of the denture may present changes in the tooth 
      position after processing, which need to be clinically adjusted.
FAU - Pachauri, P
AU  - Pachauri P
FAU - Sangur, R
AU  - Sangur R
FAU - Bathala, L Rao
AU  - Bathala LR
FAU - Mahajan, T
AU  - Mahajan T
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - Senegal
TA  - Odontostomatol Trop
JT  - Odonto-stomatologie tropicale = Tropical dental journal
JID - 8103679
RN  - 0 (Dental Materials)
RN  - 196OC77688 (Methylmethacrylate)
MH  - Bicuspid
MH  - Calibration
MH  - Dental Casting Technique/instrumentation/standards
MH  - Dental Impression Technique/standards
MH  - Dental Materials/chemistry
MH  - Denture Bases
MH  - Denture Design/instrumentation/*standards
MH  - Denture, Complete, Upper/*standards
MH  - Humans
MH  - Incisor
MH  - Methylmethacrylate/chemistry
MH  - Models, Dental/standards
MH  - Molar
MH  - Polymerization
MH  - Pressure
MH  - Random Allocation
MH  - Surface Properties
MH  - Tooth, Artificial/*standards
EDAT- 2016/07/21 06:00
MHDA- 2016/09/16 06:00
CRDT- 2016/07/21 06:00
PHST- 2016/07/21 06:00 [entrez]
PHST- 2016/07/21 06:00 [pubmed]
PHST- 2016/09/16 06:00 [medline]
PST - ppublish
SO  - Odontostomatol Trop. 2016 Mar;39(153):14-22.