Table 4.

Dentist and practice factors associated with the likelihood of recommending a crown (Crown Factor)

Characteristics	Number (n)	Crown Factor1 (SD)	P Value*
Gender
Male	1279	6.6 (1.8)	.36
Female	481	6.7 (1.8)
Race
White	1448	6.6 (1.9)	0.41
Black/African-American	77	6.8 (1.7)
Asian	159	6.5 (1.7)
Other	70	6.9 (1.4)
Type of Practice
Owner of Private Practice	1291	6.8 (1.8)	<0.0001
Associate in Private Practice	207	6.9 (1.8)
Health Partners	43	5.0 (1.7)
Permanente	70	6.1 (1.5)
Public Health, Community	64	6.4 (1.7)
Academic	48	5.3 (1.7)
Network Region
Western	292	6.7 (1.8)	<0.0001
Midwest	179	6.3 (2.0)
Southwest	310	7.1 (1.8)
South Central	329	6.7 (1.9)
South Atlantic	326	6.7 (1.8)
Northeast	336	6.3 (1.8)
Practice Busyness
Too busy	101	6.1 (1.7)	0.0002
Burdened	327	6.4 (1.9)
Balanced	908	6.8 (1.8)
Not busy	434	6.7 (1.9)
Time ommitment
Full Time	1504	6.7 (1.8)	0.11
Part Time (<32 hrs)	252	6.5 (1.8)
Private Insurance Status
<40% Private Insurance	249	6.4 (2.0)	0.02
40–79% Private Insurance	1017	6.7 (1.8)
80%+ Private Insurance	476	6.5 (1.8)
Laboratory
Commercial	1561	6.6 (1.8)	0.0003
In Office Traditional	47	6.3 (1.9)
In Office Milling	163	7.2 (1.8)
Optical Scanner Use
High: 75% or more	146	7.2 (1.7)	0.0006
Less than 75%	1626	6.6 (1.9)

¹Clinical photographs were used to calculate a “Crown Factor” (CF) number for practitioners responding to the survey. A higher number indicates a person is more likely to recommend a crown. Range is 0–12. The Crown Factor was associated with some clinician and practice variables. The CF value is listed ±Standard Deviation (SD).

^*Analysis of variance