Biomaterial Database

In vivo recalcification of dentin demineralized by citric acid. 1981

A B Tveit, and K A Selvig

Acid-treatment of root surfaces as adjunct to periodontal reconstructive surgery may have deleterious effects on that part which remains in a supragingival location after healing. The present experiment aimed to examine whether recalcification of such root surfaces may occur. Cylindrical blocks of root dentin were prepared for 10 premolars, treated with citric acid and mounted in acrylic specimen holders which were worn in the mouth continuously for 14 d by two test subjects. The specimens were then sectioned and microradiographs produced. The citric acid had produced a completely demineralized surface zone in the root dentin and the subjacent hard tissue showed a zone of partially reduced mineral content. Following exposure to the oral cavity, the demineralized surface layer appeared unchanged in width. The subjacent zone, however, had been reduced in width in all instances when compared with control specimens from the same teeth.

UI	MeSH Term	Description	Entries
D002951	Citrates	Derivatives of CITRIC ACID.
D003784	Dental Pulp Calcification	CALCINOSIS of the DENTAL PULP or ROOT CANAL.	Dental Pulp Stones,Denticle,Anomalous Dysplasia of Dentin,Calcification, Dental Pulp,Coronal Dentin Dysplasia,Dental Pulp Stone,Denticles,Dentin Dyspalsia, Shields Type 2,Dentin Dysplasia, Coronal,Dentin Dysplasia, Shields Type II,Dentin Dysplasia, Type II,Pulp Calcification, Dental,Pulp Stone, Dental,Pulp Stones,Pulp Stones, Dental,Pulpal Dysplasia,Stone, Dental Pulp,Stones, Dental Pulp,Calcifications, Dental Pulp,Coronal Dentin Dysplasias,Dental Pulp Calcifications,Dentin Anomalous Dysplasia,Dentin Anomalous Dysplasias,Dentin Dysplasias, Coronal,Dysplasia, Coronal Dentin,Dysplasia, Pulpal,Dysplasias, Coronal Dentin,Dysplasias, Pulpal,Pulp Calcifications, Dental,Pulp Stone,Pulpal Dysplasias,Stone, Pulp,Stones, Pulp
D003804	Dentin	The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992)	Dentine,Dentines,Dentins
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014092	Tooth Root	The part of a tooth from the neck to the apex, embedded in the alveolar process and covered with cementum. A root may be single or divided into several branches, usually identified by their relative position, e.g., lingual root or buccal root. Single-rooted teeth include mandibular first and second premolars and the maxillary second premolar teeth. The maxillary first premolar has two roots in most cases. Maxillary molars have three roots. (Jablonski, Dictionary of Dentistry, 1992, p690)	Root, Tooth,Roots, Tooth,Tooth Roots