Table 4 Dental Occlusion and Mean Number of Teeth in 69 OI Patients According to OI Type

Mean number of natural teeth

26.6

24.2^*

Min.-max. Number of natural teeth

5–32

14–31

95% CI

25.6–27.6

22.0–26.4

Mandibular overjet

2 (4%)

11(64%)^**

Increased maxillary overjet (≥ 6 mm)

1 (2%)

0

Deep bite (≥ 5 mm)

2 (4%)

0

Frontal open bite

5 (10%)

5 (29%)

Non-occlusion posterior (in one or in both sides)

4 (8%)

3 (18%)

Posterior cross bite (in one or in both sides)^a

7 (15%)

15 (88%)^*