Acta Scientific Dental Sciences (ASDS)(ISSN: 2581-4893)

Research Article Volume 7 Issue 2

Effect of Luting Agents and Height of Implant Abutments on the Retentive Properties of Copings - an In Vitro Study

Surya Rengasamy1, K Chandrasekharan Nair2* and Jayakar Shetty3

1Reader, Department of Prosthodontics and Implantology, SRM Kattan Kulathur Dental College and Hospital, Chengalpattu, Tamil Nadu
2Professor Emeritus, Department of Prosthodontics, Sri Sankara Dental College, Akathumuri, Thiruvananthapuram, Kerala, India
3Former Professor, Department of Prosthodontics, AECS Maaruti College of Dental Sciences, Bangalore, India

*Corresponding Author: K Chandrasekharan Nair Professor Emeritus, Department of Prosthodontics, Sri Sankara Dental College, Akathumuri, Thiruvananthapuram, Kerala, India.

Received: December 27, 2022; Published: January 09, 2023

Abstract

Objective: 1. To determine the effect of luting agents viz. zinc phosphate cement and non-eugenol cement on the retention of copings, 2. To determine the effect of height of the implant abutments viz. 4mm and 6mm on the retention of copings and 3. To determine the effect of type of copings viz. Zirconia and metal on the retention of copings cemented to implant abutments.

Methodology: TTwo brands of standard titanium implant abutments of 3.75mm diameter and 6 degree taper were used (ADIN, MIS implant systems). The abutments were machined to two different heights viz. 4mm and 6mm. The implant analogs with the abutment were positioned in cylindrical bases. Two types of copings were fabricated viz. metal copings and Zirconia copings. The copings were cemented with zinc phosphate cement (De Trey Zinc) and non-eugenol cement (Provicol). The cemented specimens were stored for 24 hours at 370C. Tensile testing was done using universal testing machine (Instron) at a cross-head speed of 1mm/min. Data was statistically analyzed with factorial ANOVA.

Results: The tensile strength was maximum for 6mm MIS implant abutment when Zirconia coping was cemented with De Trey Zinc cement (556 ± 27.34N). The minimum was seen with 4mm MIS abutment when metal coping was cemented with Provicol cement (60.90 ± 5.72N). There was statistically significant difference between the groups (p ˂ 0.001).

Conclusion:

  • The two brands of dental implants viz. MIS and ADIN behaved almost in a similar fashion with respect to the variables such as the materials used for preparing the copings, cement used for luting and the height of the abutments.
  • Height of the implant abutment and the retention of the copings have a directly proportional relationship.
  • While comparing Zirconia and metal copings, the former always exhibited superior retention.
  • De Trey Zinc always showed higher mean retention strength when used with metal or Zirconia copings.
  • The combination of Zirconia copings, De Trey Zinc luting cement and abutment with 6mm height exhibited the maximum retention strength.
  • With 4mm abutments, the luting cement preference that can be recommended is zinc phosphate followed by provisional cement whereas with 6mm abutments, the preferential order is reversed. If the retention values are high, retrieval attempts may challenge the osseointegration.
luting cement preference that can be recommended is zinc phosphate followed by provisional cement whereas with 6mm abutments, the preferential order is reversed. If the retention values are high, retrieval attempts may challenge the osseointegration.

Keywords:Retention; Tensile Bond Strength; Cement Retained Implant Prosthesis; Height of Abutment; Luting Agents

References

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Citation

Citation: K Chandrasekharan Nair., et al. “Effect of Luting Agents and Height of Implant Abutments on the Retentive Properties of Copings - an In Vitro Study".Acta Scientific Dental Sciences 7.2 (2023): 79-90.

Copyright

Copyright: © 2023 K Chandrasekharan Nair., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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