| |
Total
|
CRDAP Class I
|
CRDAP Class II
|
CRDAP Class III
|
CRDAP Class IV
| |
|---|
|
Variables
|
n
|
n
|
%
|
n
|
%
|
n
|
%
|
n
|
%
|
p
|
|---|
|
Side
| | | | | | | | | |
0.487
|
|
Right
|
447
|
44
|
9.8
|
92
|
20.6
|
46
|
10.3
|
265
|
59.3
| |
|
Left
|
447
|
53
|
11.9
|
76
|
17.0
|
47
|
10.5
|
271
|
60.6
| |
|
Tooth type
| | | | | | | | | |
< 0.001
|
|
Central incisor
|
298
|
58
|
19.5
|
56
|
18.8
|
26
|
8.7
|
158
|
53.0
| |
|
Lateral incisor
|
298
|
25
|
8.4
|
74
|
24.8
|
31
|
10.4
|
168
|
56.4
| |
|
Canine
|
298
|
14
|
4.7
|
38
|
12.8
|
36
|
12.1
|
210
|
70.5
| |
|
Side and tooth type
| | | | | | | | | |
< 0.001
|
|
Central incisor, right
|
149
|
24
|
16.1
|
31
|
20.8
|
13
|
8.7
|
81
|
54.4
| |
|
Central incisor, left
|
149
|
34
|
22.8
|
25
|
16.8
|
13
|
8.7
|
77
|
51.7
| |
|
Lateral incisor, right
|
149
|
13
|
8.7
|
38
|
25.5
|
16
|
10.7
|
82
|
55.0
| |
|
Lateral incisor, left
|
149
|
12
|
8.1
|
36
|
24.2
|
15
|
10.1
|
86
|
57.7
| |
|
Canine, right
|
149
|
7
|
4.7
|
23
|
15.4
|
17
|
11.4
|
102
|
68.5
| |
|
Canine, left
|
149
|
7
|
4.7
|
15
|
10.1
|
19
|
12.8
|
108
|
72.5
| |
|
Total
|
894
|
97
|
10.9
|
168
|
18.8
|
93
|
10.4
|
536
|
60.0
| |
- The classification of crestal and radicular dentoalveolar phenotype (CRDAP) of mandibular anterior teeth was categorized according to the thickness of dentoalveolar bone at both crestal and radicular zones [25]. The chi-square tests were used for comparing the distribution of CRDAP in different “side,” “tooth type,” and “side and tooth type,” respectively. The level of statistical significance was set at p < 0.05
