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Results for “Dental Pulp Calcification”

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PubMed1994

The lateral radiograph: an aid to labiolingual position during treatment of calcified anterior teeth.

A technique is described to obtain a lateral view of an anterior tooth using a regular periapical film. This procedure helps determine the relative labiolingual position of instruments during the nonsurgical treatment of calcified canals. No additional armamentarium is required other than what is used in the daily practice of endodontics. This technique has other applications as well.

Dental Pulp Calcification↗
PubMed1993

Microradiography and light microscopy of mineralization in the pulp of undemineralized human primary molars.

This study was undertaken to investigate the prevalence, location and histologic features of the different types of mineralization observed in the pulp of human primary molars. Microradiography and light microscopy of undemineralized material disclosed that 95% of primary molars contain pulp calcifications. Histologically, their structure may be classified into four different types: (1) pulp stones, (2) diffuse calcifications, (3) eburnoid tissue and (4) spherulitic calcifications.

Adolescent↗
PubMed1990

Pulp calcifications in primary teeth.

Information regarding the prevalence of pulp calcifications in primary teeth is lacking. The occurrence of pulp calcifications in 120 primary maxillary and mandibular extracted teeth was evaluated radiographically. Twenty-five percent of second molars presented evidence of pulp calcifications; approximately 3% of central incisors were calcified. No other categories of teeth displayed pulp involvement. The low occurrence of pulp calcifications in primary teeth support the view that the occurrence of pulp calcification increases with age.

Age Factors↗
PubMed1990

Pulp calcifications in primary teeth.

One hundred and twenty primary maxillary and mandibular extracted teeth were collected to study the occurrence and nature of pulp calcifications. The teeth were serially sectioned, stained with hematoxylin and eosin, examined by light microscope. Pulp calcifications were observed in 31 (25.8%) teeth. Two types of pulp calcifications were noticed i.e., diffuse calcifications and free/attached type denticles. The occurrence of pulp calcification appears identical in all teeth except in the first primary molar which is statistically not significant (P greater than 0.05). The low prevalence of pulp calcifications in the primary teeth support the view that pulp calcification increases as the age advances.

Dental Pulp Calcification↗
PubMed1997

[Mineralization of human dental pulp cells in continued culture].

The purpose of this study was to understand the mineralization of human dental pulp cells in vitro. Pulp cells were isolated from human normal permanent teeth and cultured in normal tissue-culture medium. With continued culture, pulp cells formed cell nodules after 12-15 days, but no cell nodules were found from human gingiva fibroblasts. Pulp cells showed high alkaline phosphatase activity and the nodules were strongly stained by Von Kossa. Furthermore, the nodules showed high level of calcium and phosphorus by Energy-dispersive X-ray analysis and pulp cells had similar ultrastrusture with odontoblasts under TEM. The continued culture of pulp cells provides a useful system for studying differentiation and calcification of pulp tissue.

Alkaline Phosphatase↗
PubMedDate not supplied

Abnormal pulp calcification in primary molars after fluoride supplementation.

Forty-five caries-free primary molars from children with continuous fluoride supplementation (n = 28) after birth and from children without fluoride prophylaxis (n = 17) were investigated by light microscopy. The following results were obtained: The prophylaxis group evidenced a special form of calcification consisting of fibrodentin-like hard tissue developing intramurally in the dentin wall especially at the pulp floor and spreading irregularily into the pulp cavity by displacing the degenerating pulp tissue (n = 24). These teeth were ankylosed in the bi- and trifurcation area as well as inside the roots. This kind of hard tissue was not observed in the teeth from untreated children. Only 5 children had greater calcifications attached at the pulp wall. Nevertheless, this difference was statistically significant (p = 0.001) and indicates a relationship between fluoride prophylaxis, the special form of pulp calcification and tooth ankylosis.

Adolescent↗