Biomaterial Database

Intrapulpal temperature increases with temporary crown and bridge materials. 2003

Sean Whalen, and Murray Bouschlicher

University of Iowa, Iowa City, USA.

The exothermic setting reaction of provisional composites and acrylics that occurs during the intraoral fabrication of temporary crowns or bridges may cause a significant heat buildup. Intrapulpal temperature increases of 5.5 degrees C may elicit a marked intrapulpal response, both immediately and after prolonged intervals. This study compared the maximum intrapulpal temperature increase associated with the exothermic setting reaction of six temporary crown and bridge materials. The roots of a mandibular molar were prepared for a full crown and suspended in a water bath. A peristaltic pump perfused the pulp chamber with water (37.0 degrees C), simulating a blood flow of 40-50 mL/100 g of tissue/min. Maximum temperature increases among groups were compared using a one-way ANOVA and Tukey HSD post hoc test (alpha = 0.05).

UI	MeSH Term	Description	Entries
D001831	Body Temperature	The measure of the level of heat of a human or animal.	Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D003442	Crowns	A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.	Dental Crowns,Crown, Dental,Crowns, Dental,Dental Crown,Crown
D003782	Dental Pulp	A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992)	Dental Pulps,Pulp, Dental,Pulps, Dental
D003794	Dental Restoration, Temporary	A prosthesis or restoration placed for a limited period, from several days to several months, which is designed to seal the tooth and maintain its position until a permanent restoration (DENTAL RESTORATION, PERMANENT) will replace it. (From Jablonski, Dictionary of Dentistry, 1992)	Dental Fillings, Temporary,Dental Prosthesis, Temporary,Dental Filling, Temporary,Dental Restorations, Temporary,Filling, Temporary Dental,Fillings, Temporary Dental,Restoration, Temporary Dental,Restorations, Temporary Dental,Temporary Dental Filling,Temporary Dental Fillings,Temporary Dental Restoration,Temporary Dental Restorations,Dental Prostheses, Temporary,Prosthesis, Temporary Dental,Temporary Dental Prostheses,Temporary Dental Prosthesis
D006358	Hot Temperature	Presence of warmth or heat or a temperature notably higher than an accustomed norm.	Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000180	Acrylic Resins	Polymers of high molecular weight which are derived from acrylic acid, methacrylic acid or other related compounds and are capable of being molded and then hardened to form useful components.	Acrylic Resin,Resin, Acrylic,Resins, Acrylic