Other terms used in the literature to define the number of missing teeth: aplasia of teeth, anodontia
, oligodontia, absence of teeth, congenitally missing teeth, lack of teeth and agenesis of teeth2.
Patients with previous orthodontic treatment, facial asymmetries, or craniofacial anomalies, short upper lip, severe crowding, spacing, incisor displacements, subdivisions (unilateral), transverse discrepancies, impacted tooth, and partial anodontia
were excluded from the study.
Oral traits of ectodermal dysplasia (ED) may be expressed as anodontia
or hypodontia with or without a cleft lip and palate.
took into consideration that the elderly women with anodontia
or dentures might have been at a higher risk, who are likely to swallow food whole without complete mastication and therefore less likely to detect the fish bone .
A 14-year-old Caucasian adolescent boy with HED had partial anodontia
and difficulties in eating, swallowing, and speech, significantly affecting his self-esteem.
Hypoplasia of intraoral accessory glands resulting in xerostomia, dry and cracked lips, prominent supraorbital ridge, frontal bossing, sunken cheeks, retruded appearance of the midface, total absence of teeth (anodontia
), partial absence of teeth (hypodontia), reduced vertical dimension of face, malformed teeth, dry and pale oral mucosa, absence or reduced vermilion, and old appearance of face.
These terms include "congenitally missing teeth," "tooth agenesis," "hypodontia," "oligodontia," and "anodontia
." The term "congenitally missing teeth" is challenging because tooth development is completed after birth, so that the presence of most tooth germs can be proved only during childhood [4-6].
Dental agenesis is the absence of formation of one or more teeth.4 "Oligodontia "is the absence of more than six teeth.5 Whereas "Anodontia
" is the absence of all teeth.6 Agenesis is the most common anomaly of the human dentition with an incidence of 20% in case of 3rd molars.7 Bailit suggested that when a third molar is absent, agenesis of the remaining teeth becomes 13 times more likely8 and it also predisposes to reduced size9 and delayed development of certain teeth10 and other dental anomalies especially when three or all four third molars are missing.11 All of these in turn affect orthodontic treatment planning.
and the toothless lucine (Anodontia
edentula) commonly known as "imbao" which are abundantly distributed in the Indo-West Pacific, from East and South Africa, including Madagascar and the Red Sea, to eastern Polynesia; north to southern Japan and Hawaii, and south to New South Wales .
However, there have been reports of specimens from Zacatecas and Jalisco which had anodontia
(congenital absence of teeth) in both i3 and one case of atresia (excessive wear out; Polaco et al., 1992) as well as in one specimen from Puebla with anodontia
(also in both i3) and agenesis (failure of the development; Ramirez-Pulido and Mudespacher, 1987).