Oligodontia is the agenesis of numerous teeth (more than six teeth). Agenesis of teeth in primary and permanent dentition is a rare incidence and very few are reported in the dental literature. Although the etiology of congenital agenesis of teeth is unclear, several factors such as a tendency toward genetic predilection, metabolic disorders, trauma, infection, radiation or idiopathic reasons a...

Five techniques for delivering ZOE into straight and curved simulated root canals were investigated for their depthof-fill capabilities. The techniques tested were those using the endodontic pressure syringe, the mechanical syringe, the lentuIo spiral, the JiffyTM Tube, and the tuberculin syringe. Statistical analysis revealed that the instruments of choice for filling straight canals were the ...

OBJECTIVES The study is to evaluate changes in microhardness of enamel after exposure to acidic center filled chewing gum on primary and permanent teeth. METHODS Thirty primary and 30 permanent molar extracted teeth were painted with acid resistant varnish except a small window over buccal surface. Teeth were divided into four groups according to type of teeth and type of chewing gum (Center ...

Dental anomalies of number and forms may occur in the primary and permanent dentition. Various terms have been used to describe dental twinning anomalies: Germination, fusion, concrescence, double teeth, conjoined teeth, twinned teeth, geminifusion, and vicinifusion. Fused tooth is a developmental anomaly that is seen more frequently in the primary than the permanent dentition. Double tooth inv...

tooth impaction rarely occurs in primary dentition. most of the primary teeth impactions are seen in second molars. the purpose of this article is to present a 4-year-old girl with bilateral impaction of inverted primary maxillary central incisors which trauma had displaced their tooth germ before erupting.

Oligodontia is agenesis of numerous teeth (> 6), excluding the third molars. Its prevalence in permanent teeth has been estimated to be 0.14%. It is one of the most common anomaly affecting the permanent dentition but equally infrequent in the primary dentition. Presented here is a case report of 7 year old child with congenitally missing 10 primary anteriors in both maxillary and mandibular de...

Hopeless retained primary teeth without permanent successors represent a restorative challenge for clinicians, along with esthetic and functional problems for patients. While various treatment approaches for congenitally missing teeth have been proposed, the replacement of a missing tooth with a dental implant offers specific advantages, such as preservation of the alveolar crest and eliminatio...