International Journal of Implant Dentistry

Table 1 Characteristics of patients and surgical sites included in the study

From: Retrospective study of alveolar ridge preservation compared with no alveolar ridge preservation in periodontally compromised extraction sockets

				No ARP	ARP
General characteristics	Age			58.06 ± 11.79	50.32 ± 10.59
		< 65		130	220
		≥ 65		41	27
	Sex	Male		99	138
		Female		72	109
	Systemic disease	Hypertension	Yes	45	51
			No	126	196
		Diabetes mellitus	Yes	12	26
			No	159	221
		Tuberculosis	Yes	0	2
			No	171	245
		Hepatitis	Yes	5	7
			No	166	240
		Osteoporosis	Yes	9	5
			No	162	242
		Smoking	Yes	25	33
			No	146	214
Site characteristics	Location	Maxillary anterior		17	31
		Maxillary posterior		89	105
		Mandibular anterior		10	10
		Mandibular posterior		55	101
	Reason for extraction	Periodontal		147	161
	Reason for extraction	Endo-perio		24	86
Ridge augmentation	Bone graft material	A		-	109
		B		-	8
		C		-	117
		D		-	5
		E		-	8
	Membrane	F		-	91
		G		-	11
Surgeon	Resident			136	160
	Specialist			35	87
Total				171	247

A: Bio Oss® (Geistlich Pharma, Wolhusen, Switzerland), B: OSTEON™ II Collagen (Genoss, Ganggyo, Korea). C: Bio Oss® Collagen (Geistlich Pharma, Wolhusen, Switzerland), D: OCS- B® (NIBEC, Seoul, Korea), E: SureOss™ (HansBiomed, Seoul, Korea), F: Biogide (Geistlich Pharma, Wolhusen, Switzerland), G: none

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