. 2025 Nov 25;25:1925. doi: 10.1186/s12903-025-07405-0

Table 6.

Use of refinements in CAT by clinical experience

Use of refinements	1–2 years	2–5 years	5–10 years	χ²	p value	No cases	1–10 cases	11–30 cases	30 +	χ²	p value
Use of refinements	n (%)	n (%)	n (%)	χ²	p value	n (%)	n (%)	n (%)	n (%)	χ²	p value
10% or less	37 (35.2)^a	3 (2.9)^b	1 (4.0)^b	79.985	< 0.001*	23 (50.0)^a	14 (16.1)^b	1 (2.7)^b	3 (4.6)^b	73.167	< 0.001*
25%	11 (10.5)^a	21 (20.0)^{a, b}	10 (40.0)^b			6 (13.0)^a	15 (17.2)^a	3 (8.1)^a	18 (27.7)^a
50%	29 (27.6)^a	26 (24.8)^{a, b}	1 (4.0)^b			6 (13.0)^a	31 (35.6)^b	12 (32.4)^b	7 (10.8)^c
75%	17 (16.2)^a	47 (44.8)^b	4 (16.0)^a			6 (13.0)^a	17 (19.5)^a	17 (45.9)^b	28 (43.1)^b
100%	11 (10.5)^a	8 (7.6)^a	9 (36.0)^b			5 (10.9)^a	10 (11.5)^a	4 (10.8)^a	9 (13.8)^a
				Cramer’s V 0.413						Cramer’s V 0.322

The left part of the table shows how many years orthodontists have been providing CAT. The right part shows the number of CAT cases they have complete

* p value from chi-squared tests

^a−b No difference between interactions with the same letter