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Dental Glossary > Glossary from M to X
M
Malocclusion:
A condition in which the opposing teeth do not mesh normally. It is usually a bad or misligned bite.
Malocclusion Class I - here the molar relationship of the occlusion is normal for the maxillary first molar, but the other teeth have problems like spacing, crowding.
Malocclusion Class II - where your upper teeth stick out past your lower teeth. This is called an overbite.
Malocclusion Class III - where your lower teeth stick out past your upper teeth. This is also called an underbite. See page
Mandible:
The lower jaw bone
Margin:
This is the line where a restoration seals against tooth structure. In crowns this is usually near or below the gumline. The margins need to be sealed with extreme accuracy otherwise gum disease or cavities will result.
Mandibular:
Pertaining to your lower jaw
Mandibular Nerve:
This is the third division of the trigeminal nerve. It leaves the skull through the foramen ovale and provides the skull through the foramen ovale and provides motor innervation to the muscles of mastication, to the tenser palati, the tenser tympani and the anterior belly of digastric and mylohyoid muscles. The mandibular nerve provides general sensory innervation to the teeth and gingiva, the mucosa of the cheek and floor of mouth, the tongue, the meninges and the skin of teh lower portion of the face.
Maxilla:
The upper jaw
Mastication:
The process of chewing food and mixture with saliva
Mesiodens:
An extra tooth lodged in between the front teeth.
Milk teeth:
Deciduous (baby) teeth
Molars:
These are the three back teeth in each dental quadrant used for grinding food.
Mouthguard:
A devicee that is used to protect your mouth from injury when you are participating in sports. See page
Mucogingival Junction (MGJ):
Meeting of thick protective gingival tissue around the teeth and the friable mucous lining of the cheeks and lips.