Dental Laboratory Production of Prosthetic Restorations in a Population in Sofia, Bulgaria: A Descriptive Study

Table 1

Dental arch groups and dentition groups of the complete sets of casts according to the number of teeth present and group characteristics.

Dental arch			Dentition
Group	No. of teeth	Characteristics	Group	No. of teeth	Characteristics
Edentulous	0	(i) no teeth	Edentulous	0	(i) no teeth
			Edentulous one jaw	≥1	(i) in opposing jaw ≥1 teeth
Interrupted/reduced	≤10	(i) open space(s)*/anterior reduction	Interrupted/reduced	≥2	(i) one or both jaws ≤ 10 teeth (ii) open space(s)*/ anterior reduction
Slightly interrupted	≥11	(i) open space(s)*	Slightly interrupted	≥22	(i) in each jaw ≥11 teeth (ii) open space(s)*
Shortened	≥6	(i) anterior region intact (ii) posterior absent teeth (iii) no open space(s)*	Shortened	≥12	(i) anterior regions intact(ii) posterior absent teeth in one or both jaws (iii) no open space(s)* in occluding area
Complete	≥14	(i) with or without 3rd molars	Complete	≥28	(i) with or without 3rd molars

*An open space is defined as tooth-bounded edentulous area.