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Sometimes poorly constructed prosthetic teeth may be the cause if the original bite is altered. Usually, the teeth are placed too far facially (i.e., buccally and/or labially), outside the " neutral zone ", which is the term for the area where the dental arch is usually situated, where lateral forces between the tongue and cheek musculature are ...
Individuals with this condition typically have the following symptoms: complete absence of both the deciduous and permanent teeth, cone-shaped canines and incisors, generalized dysplasia of the nails, palmoplantar hyperkeratosis, chronic skin dryness, and variable degrees of both hypotrichosis and either hyperhidrosis or hypohidrosis. [1] [2]
Other disorders may cause lip enlargement (e.g. orofacial granulomatosis), [5] which alters the local anatomy and extenuates the skin folds at the corners of the mouth. More still may be involved because they affect the immune system, allowing normally harmless organisms like Candida to become pathogenic and cause an infection.
Occlusal trauma; Secondary occlusal trauma on X-ray film displays two lone-standing mandibular teeth, the lower left first premolar and canine. As the remnants of a once full complement of 16 lower teeth, these two teeth have been alone in opposing the forces associated with mastication for some time, as can be evidenced by the widened PDL surrounding the premolar.
Signs and symptoms of temporomandibular joint disorder vary in their presentation. The symptoms will usually involve more than one of the various components of the masticatory system, muscles, nerves, tendons, ligaments, bones, connective tissue, or the teeth. [23] The three classically described, cardinal signs and symptoms of TMD are: [11] [24]
The primary cause of enamel wear in the grooves is the direct mechanical forces applied during chewing, such as vertical pressure and lateral forces as teeth grind or shear food. Particularly in areas where food is more frequently trapped or where contact is poor, the continuous friction between the food and the tooth surface causes abrasion ...
In medicine, an avulsion is an injury in which a body structure is torn off by either trauma or surgery (from the Latin avellere, meaning "to tear off"). [1] The term most commonly refers to a surface trauma where all layers of the skin have been torn away, exposing the underlying structures (i.e., subcutaneous tissue, muscle, tendons, or bone).
This is due to the close proximity of the apex of a primary tooth to the permanent tooth underneath. The permanent dentition can suffer from tooth malformation, impacted teeth and eruption disturbances due to trauma to primary teeth. The priority should always be reducing potential damage to the underlying permanent dentition. [36]