CLINICAL AND LABORATORY WORKFLOW WITH FIXED PARTIAL DENTURES – A SURVEY AMONG DENTISTS AND DENTAL TECHNICIANS

  • K. Gogushev Medical University “Prof. Dr. P. Stoyanov “-Varna
  • Z. Valcheva Medical University “Prof. Dr. P. Stoyanov “-Varna
Keywords: survey, dentists, dental technicians

Abstract

With the advancement of medicine and the development of new technologies, more and more manufacturing companies consult dental specialists about their opinion on certain techniques, materials and devices in order to improve and refine them. The purpose of this article is to compare and study the opinion of dentists and dental technicians on the treatment with fixed restorations of zirconium dioxide, made using a conventional and digital impression technique. Materials and methods: Using anonymous questionnaires of 20 questions, the opinion of 72 dentists and 53 dental technicians was documented regarding the clinical and laboratory wrokflow protocol and the final result in the treatment with fixed partial dentures made of zirconium dioxide. Results: The majority of dentists treat a distally limited defect with a small number of mising teeth with a fixed partial dentures (86.1%). The most commonly used are porcelain-fused to metal with a non-precious alloy framework (83% for dental technicians and 93.1% of dentists, respectively), followed by zirconium dioxide structures (39.60% for dental technicians and 37.50% for dentists, respectively). Conclusion: The main way in which dentists and dental technicians treat distally limited defects of the dentition is through fixed porcelain-fused to metal restorations. Most dental professionals use a two-stage two-layer impression technique with addition silicones and standard metal impression trays.

Author Biographies

K. Gogushev , Medical University “Prof. Dr. P. Stoyanov “-Varna

Associate Professor,  Department of “Clincs of Prosthetic Dental Medicine” Faculty of Dental Medicine

Z. Valcheva, Medical University “Prof. Dr. P. Stoyanov “-Varna

PhD, Associate Professor,  Department of “Orthodontics” Faculty of Dental Medicine

References

1.Markovic D, Puskar T, Hadzistevic M, Potran M, Blazic L, Hodolic J. The dimensional stability of elastomeric dental impression materials. Contemp Mater 2012;1:105-10].
2.Angelova St., Conventional and digital impression methods in fixed prosthetics, MU-Varna, Varna, 2016 г.].
3.Donovan JE, Chee WW. A review of contemporary impression materials and techniques.Dent Clin North Am 2004;48(2):445–70, vi–vii;
4.Rubel BS: Impression materials: a comparative review of impression materials most commonly used in restorative dentistry. Dent Clin North Am 2007;51: 629-646;
5. Chee WWL, Donovan TE: Polyvinyl siloxane impression materials: a review of properties and techniques. J Prosthet Dent 1992;68:728-732
6.Alhoumaidan A, Mohan MP, Doumani M. The knowledge, attitude and practice of fixed prosthodontics: A survey among Qassim dental practitioners. J Family Med Prim Care. 2019 Sep 30;8(9):2882-2887
7.Carrotte PV, Johnson A, Winstanley RB. The influence of the impression tray on the accuracy of impressions for crown and bridge work: an investigation and review. Br Dent J. 1998;185(11-12):580-585;
8.Cho G and Chee WWL. Distortion of disposable plastic stock trays when used with putty vinyl polysiloxane impression materials. J Prosthet Dent 2004; 92:354- 358;
9.Hoyos A, Soderholm K. Influence of tray rigidity and impression technique on accuracy of polyvinyl siloxane impressions. Int J Prosthodont 2011;24: 49-54].
10.Caputi S, Varvara G. Dimensional accuracy of resultant casts made by a monophase, one-step and two-step, and a novel two-step putty/light- body impression technique: an in vitro study. J Prosthet Dent 2008;99: 274-81;
11. Nissan J, Laufer BZ, Brosh T, et al: Accuracy of three polyvinyl siloxane putty-wash impression techniques. J Prosthet Dent 2000;83:161-165;
12. Levartovsky S., Maayan Z., Pilo R., Harel N., Ganor Y., Brosh T. The Effect of One-Step vs. TwoStep Impression Techniques on Long-Term Accuracy and Dimensional Stability when the Finish Line is within the Gingival Sulcular Area. Journal of Prosthodontics,2004, 23(2), 124–133]
13. Kisov Hr. Impression materials and impressions methods in fixed prosthodontics, Sofia, 1998, 153 p
14. Chen, S.Y., W.M. Liang, and F.N. Chen, Factors affecting the accuracy of elastometric impression materials. J Dent, 2004. 32(8): p. 603-9,
15.Al-Odinee NM, Al-Hamzi M, Al-Shami IZ, Madfa A, Al-Kholani AI, Al-Olofi YM. Evaluation of the quality of fixed prosthesis impressions in private laboratories in a sample from Yemen. BMC Oral Health. 2020 Nov 4;20(1):304;
16. Rau CT, Olafsson VG, Delgado AJ, Ritter AV, Donovan TE. The quality of fixed prosthodontic impressions: An assessment of crown and bridge impressions received at commercial laboratories. J Am Dent Assoc. 2017 Sep;148(9):654-660
Published
2021-04-15
How to Cite
Gogushev , K., and Z. Valcheva. 2021. “CLINICAL AND LABORATORY WORKFLOW WITH FIXED PARTIAL DENTURES – A SURVEY AMONG DENTISTS AND DENTAL TECHNICIANS ”. EurasianUnionScientists 2 (3(84), 22-27. https://doi.org/10.31618/ESU.2413-9335.2021.2.84.1280.