Chernyavsky Y.P., Shupilkin N.V.
The use of ash-free plastic «Pattern Resin» LS, ash-free posts «Uniclip» while modelling cast stump metal posts in dentistry
Education Establishment "Vitebsk State Order of Peoples’ Friendship Medical University", Republic of Belarus
Abstract.
This paper presents the results of the efficacy evaluation of the methods of modelling cast stump metal posts, produced directly from the modelling wax «Lavaks» (Stoma, Ukraine) and from ash-free plastic «Pattern Resin» LS (GS, Japan) with the use of ash-free posts «Uniclip» (Dentsply Maillefer, Switzerland). The objects of the study were 30 cast stump metal posts, made out of the modelling wax «Lavaks» (Stoma, Ukraine) by means of the direct method. 30 cast stump metal posts, produced directly from ash-free plastic «Pattern Resin» LS (GS, Japan) with the use of ash-free posts «Uniclip» (Dentsply Maillefer, Switzerland) served as a comparison group. The assessment of methods used to model cast stump metal posts was made according to the scale of casting defects and the quality of the adjustment of cast stump metal posts in the oral cavity.
As a result of this study it has been found that when using the method of modelling cast stump metal posts from ash-free plastic «Pattern Resin» LS (GS, Japan) with the use of ash-free posts «Uniclip» (Dentsply Maillefer, Switzerland) accurate reflection of the prosthetic field, high durability of the modelled construction and the possibility of multiple remodelling, high quality of the cast construction, the possibility of modelling the inlay for the already finished crown were observed.
Key words: cast stump metal post, ferrule, ash-free plastic, «Lavaks», «Pattern Resin» LS, «Uniclip».
References
1. Gavrilov EV. Ispol'zovanie keramicheskikh polimerov v mikroprotezirovanii [Use of ceramic polymers in a microprosthetic repair]. Sovremennaia ortopedicheskaia stomatologiia. 2004;(1):74–5.
2. Danilina TF, Naumova VN, Zhidovinov AV. Lit'e v ortopedicheskoi stomatologii [Molding in an orthopedic odontology]: ucheb. posobie. Volgograd, RF: VolgGMU; 2011. 132 р.
3. Doinikov AI, Sinitsyn VD. Zubotekhnicheskoe materialovedenie [Dentitechnical materials science]. Moscow, RF: Meditsina; 1986. 208 р.
4. Zhulev EN. Materialovedenie v ortopedicheskoi stomatologii [Materials science in an orthopedic odontology]. Nizhny Novgorod, RF: Izd-vo NGMA; 1997. 365 р.
5. Lutskaia IK, Novak NV. Etapy endodonticheskogo lecheniia [Stages of endodontichesky treatment]. Sovremennaia stomatologiia. 2007;(1):29–34.
6. Nikolaev AI, Tsepov LM. Prakticheskaia terapevticheskaia stomatologiia [Practical therapeutic odontology]: ucheb. posobie. 8-e izd, dop. i pererab. Moscow, RF: MEDpressinform; 2008. 960 р.
7. Pimenov AB. Uchastki kornevykh kanalov, nedostupnye dlia instrumental'noi obrabotki [Sites of root canals inaccessible to tool processing]. Endodontiia today. 2003;(1-2):23–5.
8. Poiurovskaia IIa. Stomatologicheskoe materialovedenie [Stomatologic materials science]: ucheb. posobie. Moscow, RF: GEOTAR-Media; 2008. 186 р.
9. Poloneichik NM. Modelirovochnye plastmassy [Modeling plastic]. Sovremennaia stomatologiia. 2011;(1):84–7.
10. Trezubov VN, red. Ortopedicheskaia stomatologiia. Prikladnoe materialovedenie [Orthopedic odontology. Applied materials science]: ucheb. dlia med. vuzov. Saint Petersburg, RF: Spetsial'naia literatura; 1999. 324 р.
11. Yudina NA. Sovremennye standarty lecheniia. Chast' 1. Diagnostika, planirovanie lecheniia i endodonticheskoe preparirovanie [Modern standards of treatment. Part 1. Diagnostics, planning of treatment and endodontichesky preparing]. Sovremennaia stomatologiia. 2012;(1):5–9.
12. Buchanan LS. Preparirovanie kornevogo kanala standartnoi konusnoi formy. Chast' 1. Kontseptsiia endodonticheskikh formiruiushchikh instrumentov s peremennoi konusnost'iu [The standardizer-taper root canal preparation. Part 1. Concepts for variably tapered shaping instruments]. Endodontiia today. 2001;(l):31–40.
13. Meng QF, Chen YM, Guang HB, Yip KH, Smales RJ. Effect of a ferrule and increased clinical crown length on the in vitro fracture resistance of premolars restored using two dowel-and-core systems. Oper Dent. 2007 Nov-Dec;32(6):595-601.
14. Morgano SM, Milot P. Clinical success of cast metal posts and cores. J Prosthet Dent. 1993 Jul;70(1):11-6.
