Tooth morphogenesis is accompanied by apoptotic events which show restricted temporospatial patterns suggesting multiple roles in odontogenesis. Dental apoptosis seems to be caspase dependent and caspase-3 has been shown to be activated during dental apoptosis.Caspase-3 mutant mice on different genetic backgrounds were used to investigate alterations in dental apoptosis and molar tooth morphoge...

Primary failure of eruption represents a cessation of tooth eruption before emergence not due to a physical barrier or abnormal position and has no systemic cause. This failure of tooth eruption is rare phenomenon and it has not been associated with alterations of dental follicle. This case report describes a permanent right first molar with primary failure of eruption at the inferior border of...

Idiopathic root resorption (IRR) is an infrequent condition that is usually found as an accidental finding on radiography. A significant number of cases of IRR in permanent dentition have been presented but are rarely reported in primary dentition. The aim of this case report is to present a case of localized IRR in a 7-year-old boy. The patient was referred because of increased mobility of the...

The preservation of deciduous teeth is essential until normal exfoliation. It plays an important role in preventive and interventional dentistry. Early loss a tooth or can have various consequences. Space maintainer the intra-alveolar kind advised when second molar lost before eruption first permanent molar. This report discusses modified Willet appliance cases where primary occur prior to mand...

objective: extraction of premolars is believed to affect the eruption of third molars. this comparative study aimed to assess the change in angulation of third molars following first/second premolar extraction versus non-extraction orthodontic treatments. methods: this historical cohort study was conducted on patients assigned to three treatment groups: extraction of mandibular first premolars ...

background and aims. due to anatomic variation in tooth anatomy between populations, this study compared the buccolingual (bl) and mesiodistal (md) dimensions of primary molars with those of stainless steel crowns (sscs) in an iranian population. materials and methods. impressions were taken from both dental arches of children, and casts were poured. teeth with caries, restoration, hypoplasia o...

background and aims. bruxism is defined as a habitual nonfunctional forceful contact between occlusal tooth surfaces. in younger children bruxism may be a consequence of the masticatory neuromuscular system immaturity. the aim of this study was to assess the prevalence of bruxism and investigate the relationship between occlusal factors and bruxism among preschool children. materials and method...

Autogenous tooth transplantation (ATT) is a simple and reasonable choice for replacing the missing teeth when a proper donor tooth is available. This report presents a case of successful ATT of a maxillary right third molar for replacement of mandibular right second molar with a concomitant endodontic-periodontal disease. The mandibular second molar was believed to be hopeless due to a severe d...

tooth transplantation can be considered a valid and predictable treatment option for rehabilitating young patients with permanent teeth loss. this study presents several cases of successful autogenous tooth transplantation with a 6-9 months follow-up. tooth auto-transplantation can be considered a reasonable option for replacing missing teeth when a donor tooth is available. the auto-transplant...

Dens invaginatus is a rare developmental anomaly. It is unusual to find this anomaly in primary dentition. Diagnosis of this dens invaginatus is important due to possible pulpal involvement. Not only that, simultaneous presence of other dental anomaly may require long-term treatment planning. Dens invaginatus can be detected clinically in the tooth presenting unusual crown morphology or radiogr...