Influence of Implant Angulation and Implant Number on the Accuracy of Definitive Casts.
Definitive casts
dental implant
open tray technique
Journal
Journal of pharmacy & bioallied sciences
ISSN: 0976-4879
Titre abrégé: J Pharm Bioallied Sci
Pays: India
ID NLM: 101537209
Informations de publication
Date de publication:
Jun 2021
Jun 2021
Historique:
received:
02
12
2020
revised:
05
12
2020
accepted:
08
12
2020
entrez:
27
8
2021
pubmed:
28
8
2021
medline:
28
8
2021
Statut:
ppublish
Résumé
The present study determined the effect of implant angulation and implant number on the dimensional precision of implant definitive casts. Three definitive casts with implant analogs placed in a triangular pattern were made from dental stone. Group I was control group, Group II in which implant numbers 1 and 3 were at 5° convergence to the implant number 2. Group III in which implant numbers 1 and 3 are at 5° divergence to the implant number 2. Group IV in which implant numbers 1 and 3 are at 10° convergence to the implant number 2. Implant analogs were secured in all the definitive casts with cyanoacrylate. Three open tray impressions of the definitive cast were obtained and poured in Type IV dental stone. Coordinates in the three planes were measured at implant analog top surface and base of the cast using a fine tip measuring stylus. The data were aligned and angular differences between implant analog vectors from definitive and duplicate casts were measured. There was a significant correlation between dental implant number and dental implant angulation ( Close proximity of implant angulation toward right-angled direction results in higher precision of implant.
Sections du résumé
BACKGROUND
BACKGROUND
The present study determined the effect of implant angulation and implant number on the dimensional precision of implant definitive casts.
MATERIALS AND METHODS
METHODS
Three definitive casts with implant analogs placed in a triangular pattern were made from dental stone. Group I was control group, Group II in which implant numbers 1 and 3 were at 5° convergence to the implant number 2. Group III in which implant numbers 1 and 3 are at 5° divergence to the implant number 2. Group IV in which implant numbers 1 and 3 are at 10° convergence to the implant number 2. Implant analogs were secured in all the definitive casts with cyanoacrylate. Three open tray impressions of the definitive cast were obtained and poured in Type IV dental stone. Coordinates in the three planes were measured at implant analog top surface and base of the cast using a fine tip measuring stylus. The data were aligned and angular differences between implant analog vectors from definitive and duplicate casts were measured.
RESULTS
RESULTS
There was a significant correlation between dental implant number and dental implant angulation (
CONCLUSION
CONCLUSIONS
Close proximity of implant angulation toward right-angled direction results in higher precision of implant.
Identifiants
pubmed: 34447111
doi: 10.4103/jpbs.JPBS_792_20
pii: JPBS-13-367
pmc: PMC8375906
doi:
Types de publication
Journal Article
Langues
eng
Pagination
S367-S369Informations de copyright
Copyright: © 2021 Journal of Pharmacy and Bioallied Sciences.
Déclaration de conflit d'intérêts
There are no conflicts of interest.
Références
J Prosthet Dent. 2000 May;83(5):562-6
pubmed: 10793389
Int J Oral Maxillofac Implants. 1991 Winter;6(4):448-55
pubmed: 1820314
Implant Dent. 2004 Dec;13(4):358-66
pubmed: 15591998
Quintessence Int. 1997 Mar;28(3):177-81
pubmed: 9452684
Implant Dent. 2013 Jun;22(3):268-76
pubmed: 23615660
J Prosthet Dent. 1996 Mar;75(3):314-25
pubmed: 8648581
J Prosthet Dent. 2006 Sep;96(3):220-1
pubmed: 16990075
J Prosthet Dent. 2007 Jun;97(6):349-56
pubmed: 17618917
Int J Oral Maxillofac Implants. 1996 Mar-Apr;11(2):216-22
pubmed: 8666454
J Prosthodont. 1993 Jun;2(2):75-82
pubmed: 8242170