Table 2. Prevalence and percentages of primary molar contacts by arch and side.
| Center 1 (Ajman) | Center 2 (Puducherry) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Maxilla | Mandible | Total
(%) |
Maxilla | Mandible | Total (%) | |||||
| Right (%) | Left (%) | Right (%) | Left (%) | Right (%) | Left (%) | Right (%) | Left (%) | |||
| O | 13
(6.5%) |
10
(5%) |
8
(4%) |
7
(3.5%) |
38
(19%) |
4
(2%) |
3
(1.5%) |
3
(1.5%) |
2
(1%) |
12
(6%) |
| X | 11 (5.5%) | 15
(7.5%) |
10
(5%) |
9
(4.5%) |
45
(22.5%) |
1
(0.5%) |
0 | 0 | 2
(1%) |
3
(1.5%) |
| I | 20
(10%) |
15
(7.5%) |
35
(17.5%) |
36
(18%) |
106
(53%) |
37
(18.5%) |
37
(18.5%) |
39
(19.5) |
38
(19.0%) |
151
(75.5%) |
| S | 4
(2%) |
1
(0.5%) |
1
(0.5%) |
5
(2.5%) |
11
(5.5%) |
8
(4%) |
10
(5%) |
8
(4%) |
8
(4%) |
34
(17%) |
| 48 | 41 | 54 | 57 | 200 | 50 | 50 | 50 | 50 | 200 | |
O, open contact; X, point contact; I, straight contact; S, curved contact.