Search results
Results From The WOW.Com Content Network
The root of the mandibular canine, which is fully formed by age 13, is the longest in the mandibular arch. The mandibular canines are slightly narrower than the maxillary canines but its crown is as long and sometimes is longer. The mandibular canines usually have only one root, but sometimes the root may be bifurcated, or have two roots. When ...
Supernumerary roots is a condition found in teeth when there may be a larger number of roots than expected. The most common teeth affected are mandibular (lower) canines, premolars, and molars, especially third molars. Canines and most premolars, except for maxillary (upper) first premolars, usually have one root.
Periapical COD occurs most commonly in the mandibular anterior teeth while focal COD appears predominantly in the mandibular posterior teeth. Florid COD is an extensive variant of periapical COD where lesions occur in multiple quadrants which can encompass the maxilla and mandible, and infrequently can cause jawbone deformity.
The risk of nerve injury in relation to mandibular dental implants is not known but it is a recognised risk requiring the patient to be warned. [10] If an injury occurs urgent treatment is required. The risk nerve injury in relation deep dental injections has a risk of injury in approximately 1:14,000 with 25% of these remaining persistent.
The right deciduous maxillary canine is known as "C" and the left one "H". In international notation, the right deciduous maxillary canine is known as "53" and the left one "63". In the universal system of notation, the permanent maxillary canines are referred to by numbers. The right permanent maxillary canine is known as "6" and the left "11".
Depending on the dentist (and the health authority's guidelines in that country), and the situation, impacted teeth may be extracted or left alone. Extraction may be contraindicated, simple, or surgical, depending on the location of the teeth. Sometimes, a surgeon may wish to expose the canine for aesthetic purposes.
When teeth and roots are extracted, bone resorption ensues. This is greatest in the mandible and can be minimised by retaining roots. Mandibular bone loss was examined by Crum and Rooney 1978 in patients with immediate complete dentures and in those with immediate overdentures on two lower canines.
Retention demands are significantly less following serial extraction. However it is better to follow a regular retention regimen for the first six months against possible relapse of rotations and to allow settling of the occlusion. A maxillary Hawley type retainer and a bonded mandibular canine to canine retainer make an efficient retention ...