In orthodontics, a<unk>  is a misalignment or incorrect relation between the teeth of the upper and lower dental arches when they approach each other as the jaws close. The English-language term dates from 1864; Edward Angle (1855-1930), the "father of modern orthodontics", popularised it. The word<unk> " derives from occlusion, and refers to the manner in which opposing teeth meet (mal- + occlusion = "incorrect closure"). The<unk>  classification is based on the relationship of the mesiobuccal cusp of the maxillary first molar and the buccal groove of the mandibular first molar. If this molar relationship exists, then the teeth can align into normal occlusion. According to Angle,<unk>  is any deviation of the occlusion from the ideal. However, assessment for<unk>  should also take into account aesthetics and the impact on functionality. If these aspects are acceptable to the patient despite meeting the formal definition of<unk> , then treatment may not be necessary.
Malocclusion
Splenosis
Venous leak
Inspissation
Needle remover
Defecation
Anaplasia
Subluxation