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Tooth Morphology

Tooth Morphology – Anatomic Characteristics Shown by Different teeth types: Permanent teeth Features Common to all Incisors in Tooth Morphology They have a single, cone-shaped, tapering root. The incisal edge of newly erupted teeth show mamelons. The crowns are triangular when viewed from proximal aspect.  The crowns do not have any linear faults. The facial […]

Permanent dentition

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The permanent dentition consists of the permanent teeth in the human oral cavity, those teeth which remain throughout one’s adult life. The permanent dentition is also known as the secondary dentition. The permanent dentition numbers 32 teeth altogether. There are 16 teeth in both the maxillary and mandibular arches. Each arch can be further divided […]

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Mixed Dentition

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The mixed dentition refers to the presence of primary and permanent teeth together in the oral cavity. This usually occurs between the ages of five and thirteen years as primary teeth are exfoliated and permanent teeth erupt. It is during the time of mixed dentition that dental abnormalities become apparent. Dental conditions such as missing […]

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Primary Dentition

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The Primary Dentition are the first set of teeth that develop in the human oral cavity. They are often referred to as the baby teeth or the deciduous teeth. There are 20 primary teeth—10 maxillary and 10 mandibular. They perform several important functions, including aiding in the chewing and digestion of food, and aiding in […]

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Tooth Surfaces

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Tooth Surfaces – There are several characteristics of the external appearance of a tooth. The following section describes the tooth surfaces of both the anterior and posterior teeth. Proximal The proximal tooth surfaces or contact is formed by the contact of two adjacent teeth. The mesial surface of one tooth contacts the distal surface of […]

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The temporomandibular joint, abbreviated TMJ, is the movable hinge where the maxilla and mandible meet. The temporomandibular joint receives its name from the two bases that meet at this area, the temporal base and the mandible. The joint itself consists of three major bony parts. The articular eminence is the raised section of the temporal […]

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Dental arch

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Dental arch – The teeth are arranged in two dental arches and these two separate arches, the maxillary and the mandibular arches, align the human dentition. There are an equal number of teeth in the upper and lower arches. The arrangement of the teeth is symmetrical in the right and the left halves in each […]

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Parts of the Teeth

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Parts of the Teeth – It is very important for every person associated with the work of Dental Office to be familiar with the physiology of a tooth as well as the function of each part of the tooth. Three main parts make up a tooth—the crown, the cervix, and the root. Parts of the […]

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Eccentric occlusion

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Eccentric occlusion refers to contact of teeth that occurs during movement of the mandible. Eccentric occlusion can be of two types: • Fuctional occlusion • Non functional occlusion Functional occlusion Functional Eccentric occlusion (also called working side occlusion) refers to tooth contacts that occur in the segment of the arch towards which the mandible moves. […]

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Centric occlusion

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Centric relation (not centric occlusion)is the relation of the mandible to the maxilla when the mandibular condyles are in the most superior and retruded position in their glenoid fossa with the articular disc properly interposed. Centric relation is also called ligamentous position or terminal hinge position. At centric relation both the condyles are simultaneously seated […]

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