UNLABELLED Unerupted supernumerary teeth, depending on the morphology, number and distribution can give rise to various alterations in the eruption and development of those permanent teeth to which they are related. OBJECTIVES We aimed to make an epidemiological and descriptive study of the clinical characteristics of patients in Barcelona, their surgical treatment and how said treatment was ...

In this study we describe the morphology of the larval shell of three oyster species of Crassostrea genus. Two species, C. rhizophorae and C. brasiliana, are native to the Brazilian coast, and C. gigas is an introduced species. Samples of laboratory reared larvae, obtained through artificial fertilisation, were collected at intervals during the cultivation process for analysis using Scanning El...

OBJECTIVE To evaluate the interfacial morphology and the bond strength produced by the three-step, two-step and single-step bonding systems in primary teeth. MATERIALS AND METHODS Occlusal surfaces of 72 extracted human deciduous teeth were ground to expose the dentin. The teeth were divided into four groups: (a) Scotchbond Multipurpose (3M, ESPE), (b) Adh Se (Vivadent), (d) OptiBond All-in-O...

The oral aesthetic medicine has contributed increasingly to correct aesthetic defects in order to respond to the standards of beauty imposed by society. A smile with white teeth is included in these standards. However, due to several factors, such as diet, age and certain vices, the natural color of teeth tends to change. The bleaching of teeth pretends to restore the original color of the teet...

AIM The purpose of this study was the 3D reconstruction of six teeth with morphological peculiarities using serial cross-sections. METHODOLOGY All the teeth were put in 3% NaOCl solution after extraction, washed under running water and air-dried. They were then embedded in a two-phase polyester resin and serial cross-sections were produced from each specimen using a special microtome. The thi...

I discuss the nature of serial homology. Mammalian teeth have a relatively dense fossil record, which permits an often close reconstruction of the evolution of patterns of serial homology. I identify the main crests of mammalian teeth, summarize their evolution, and provide new names where necessary. Serial homologies can change in evolution, originate, and disappear. They can be partial, unlik...

single rooted primary mandibular first molar is a rare developmental anomaly. literatures reveal that failure of invagination of hertwig's epithelial root sheath leads to this unusual root form. thorough knowledge of root canal morphology and anatomical variations of primary teeth can help a pediatric dentist in successful root canal treatment. hereby, we describe two cases of primary mandibula...

The occurrence of dental abnormalities affecting both the primary and permanent dentition in children with oral clefts has been well documented.1-5 These abnormalities can be in the number, morphology, or eruption pattern of the teeth and are more frequent in children with clefts than in children without clefts.1 Specifically, both supernumerary and fused teeth have been shown to occur with gre...

The postcanine dentition of Diademodon was well adapted, in both morphology and pattern of replacement, to exercising and maintaining precise occlusion. These teeth may be grouped into three morphological classes, consisting of conical, gomphodont and sectorial teeth. The anterior conicals may have acted as gripping teeth, and the posterior sectorials may have been utilized as food "tenderizers...