Cumulative Success Rate of Short and Ultrashort Implants Supporting Single Crowns in the Posterior Maxilla: A 3-Year Retrospective Study

Table 3

Descriptive analysis of the success rate according to study groups.

Variable	Short		Ultrashort
	Success	Failure	Success	Failure
	(%)	(%)	(%)	(%)
Implanted tooth type
Premolar	55 (57.29)	1 (50.00)	10 (25.64)	1 (50.00)
Molar	41 (42.70)	1 (50.00)	29 (74.35)	1 (50.00)
Implant surface
Integra-CP	78 (83.87)	2 (100)	35 (94.59)	2 (100)
HA-coated	10 (10.75)	0 (0.00)	2 (5.40)	0 (0.00)
Integra-Ti	5 (5.37)	0 (0.00)	0 (0.00)	0 (0.00)
Restorative material
Ceromer	18 (18.75)	0 (0.00)	13 (33.33)	2 (100)
Ceramic	78 (81.25)	2 (100)	26 (66.66)	0 (0.00)
Crown-to-implant ratio
<2 Units	66 (69.47)	1 (50.00)	5 (12.82)	0 (0.00)
>2 Units	29 (30.52)	1 (50.00)	34 (87.17)	1 (100)
Periodontal status before implantation
Periodontally compromised	20 (52.63)	1 (50.00)	5 (21.73)	1 (50.00)
Nonperiodontally compromised	18 (47.36)	1 (50.00)	18 (78.26)	1 (50.00)