molar teeth


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molar teeth

the crushing teeth that occur at the back of the jaw of mammals. Each molar possesses a complicated pattern of cusps and ridges and several roots. The molars have no preceding milkteeth. In UNGULATE mammals, the molars continue to grow throughout life as the pulp cavity remains open.

teeth

small, bonelike structures of the jaws for the biting and mastication of food. Plural of tooth. See also dental, tooth.

teeth abscess
see alveolar1 abscess, malar abscess.
accessional teeth
the permanent molars, so called because they have no deciduous predecessors in the dental arch.
anelodont teeth
teeth with a limited period of growth.
anterior teeth
usually taken to include incisors and canines.
teeth attrition
see dental attrition.
baby teeth
see deciduous teeth (below).
brachyodont teeth
a type of dentition as seen in humans and pigs; the teeth have short crowns, well developed roots and a narrow root canal. See also hypsodont, bunodont.
bunodont teeth
canine teeth
the long, pointed tooth in the interdental space between incisors and cheek teeth; there is one in each jaw on both sides.
carnassial teeth
teeth cavity
see dental cavity, pulp cavity.
deciduous teeth
the temporary set of teeth that erupt in the young and are shed before or near maturity. They have smaller crowns and root systems and are fewer in number than the permanent teeth that replace them. Called also milk teeth, temporary teeth, baby teeth. Occasionally, particularly in small breeds of dogs, shedding of the deciduous tooth may not occur when the permanent replacement has erupted, necessitating veterinary intervention.
Enlarge picture
Retained deciduous canine tooth in a dog.
diphyodont teeth
displaced molar teeth
see inherited displacement of molar teeth.
ectopic teeth
see dental cyst.
embedded teeth
unerupted.
congenital teeth enamel deficiency
see inherited enamel defect.
teeth eruption time
see Table 19.
teeth excessive wear
occurs in animals on high fluorine intake or on diets low in calcium.
geminous teeth
teeth grinding
1. grinding of the incisors to improve foraging ability. Has been done to sheep with an industrial angle grinder with indifferent results.
2. see bruxism.
heterodont teeth
homodont teeth
hypsodont teeth
a form of dentition, seen in horses and many ruminants; the crown is high (deep), the root is short.
impacted teeth
one so placed in the jaw that it is unable to erupt or to attain its normal position in occlusion.
incisor teeth
the front teeth used for cropping grass or rending flesh. From two to four in each quadrant, depending on the species, except that they are missing in the upper jaw of ruminants.
inherited molar teeth displacement
see inherited displacement of molar teeth.
lophodont teeth
cheek teeth with ridged occlusal surfaces. See also lophodont.
teeth maleruption
defective eruption; includes delayed eruption and more usually eruption out of its normal position.
milk teeth
see deciduous teeth (above).
molar teeth
the permanent, primary cheek teeth that are not preceded by premolars. They are typically big teeth used for grinding and with ridges on their occlusal surfaces (lophodont) in horses, worn rounded cusps (bunodont) in pigs, or including crescents (selenodont) in cattle, and either cutting edges or flattened areas in carnivores.
monophyodont teeth
needle teeth
any small sharp teeth in piglets but principally the canine teeth.
permanent teeth
see permanent dentition.
teeth pigmentation
see tetracycline stain.
pink teeth
caused by staining with porphyrin, or by deficiency of dentine and enamel, a congenital defect.
premature teeth loss
a problem in New Zealand sheep. Characterized by acute then chronic gingivitis, then periodontitis and loss of teeth. Cause unknown.
premolar teeth
cheek teeth present in both generations, found between the molars and canines. The first premolar is exceptional in humans because it erupts late and is never replaced. In domestic species, there are up to three or four deciduous, followed by up to four permanent premolars in both jaws and on both sides.
teeth rasp
see tooth rasp.
retained teeth
deciduous premolars or incisors may be retained even though the permanent teeth have erupted. The deciduous crowns are likely to protrude at odd angles and cause difficult mastication.
secodont teeth
sectorial teeth
a cutting tooth. See carnassial tooth.
selenodont teeth
teeth with crescents in their grinding surfaces, as in the cheek teeth of ruminants.
sharp teeth
the edges of molar teeth in the horse which require frequent rasping because of the injury that they might cause to the oral mucosa.
stained teeth
red-brown in inherited porphyrinuria in cattle, frequent dosing with tetracyclines, heavy staining with brown tartar in ruminants with a rumination and prehension problem, usually due to loss of anterior part of tongue.
supernumerary teeth
teeth in excess of the normal complement, e.g. double row of incisors. Called also polyodontia, heterotopic polydontia.
temporary teeth
see deciduous teeth (above).
wolf teeth
References in periodicals archive ?
This study has indicated inconsistencies in the application of the ICDAS system for coding both caries and restorations amongst dental students when examining extracted primary and permanent molar teeth.
In the transverse dimension, the molar teeth intercuspate in such a way that the buccal cusps of the maxillary teeth are lateral or buccal to the buccal cusps of their mandibular counterparts.
This is consistent with a recent study, which found a significantly increased efficacy of articaine 4% over lidocaine 2% for maxillary infiltration in molar teeth.
The molar teeth were extracted from some mice so that they could not chew and the memories of the mice were then tested in a water maze.
The original shape of molar teeth was restored to its original form with composite resin build-ups of Filtek Z 250 (3M ESPE) which was bonded with Prime & Bond NT (Dentsply, Konstanz, Germany) after 7s etch-and-rinse technique, (Scotchbond Etchant, 3M ESPE).
Thirty healthy children aged 6-9 years old (13 females and 17 males) with two carious primary molar teeth in different quadrants requiring pulpotomies were selected and were randomly (spin of a coin) assigned to receive FC and ABS pulpotomies.
Maintaining good hygiene in the area of the molar teeth is difficult.
The new specimen, a lower right jaw, contains all three molar teeth, one complete and one partial premolar tooth, and largely intact roots for a canine and several incisors at the front of the mouth.
The questions were drawn from the available literature related to the possible systemic causative factors of hypomineralisation defects in first permanent molars, permanent incisors and second primary molar teeth.
Back in the laboratory, they made epoxy casts of molar teeth.
In the last issue of the European Archives of Paediatric Dentistry (Volume 13 issue 1 for February 2012) there was a short communication published presenting the results of a pan-European comparison of the management of carious primary molar teeth by postgraduates in Paediatric Dentistry.
They note that the thickness and breadth of the lower jaws and the size of molar teeth vary markedly in the Klasies finds, and that modern people living in some regions, such as Asia, have smaller, lighter cranial bones than those living elsewhere, although Asians are not necessarily more anatomically modern.