Table 8.

Implant failure case in the maxilla

Case	Age	Sex	Smoking	Systemic disease	Surgical procedure (number of implants)	Type of implant	Diameter (mm)	Length (mm)	Initial torque value (Ncm)	Direction	Time to implant failure (month)
1	56	M	–	–	All-on-four (4)	Nobel speedy groovy	4.0	18	45	Tilted	5
2	51	M	+	–	All-on-four (4)	Nobel replace tapered groovy	4.3	16	45	Straight	3
						Nobel speedy groovy	4.0	18	35	Tilted	3
						Nobel speedy groovy	4.0	18	45	Tilted	3
3	36	M	+	–	All-on-four (4)	Nobel speedy groovy	4.0	18	45	Tilted	2
4	64	F	–	–	All-on-four + 1 (5)	Nobel speedy groovy	4.0	18	30	Tilted	174
						Nobel speedy groovy	4.0	10	35	Straight	174
5	62	M	–	HT	All-on-four (4)	Nobel speedy groovy	4.0	18	50≦	Tilted	8
6	52	F	–	–	All-on-four + 1 (5)	Nobel speedy groovy	4.0	11.5	45	Straight	1
						Nobel speedy groovy	4.0	13	45	Tilted	1
7	66	F	+	–	All-on-four (4)	Nobel speedy groovy	4.0	10	50 ≤	Straight	3
						Nobel speedy groovy	4.0	15	50 ≤	Tilted	6
						Nobel speedy groovy	4.0	10	50 ≤	Straight	3
						Nobel speedy groovy	4.0	15	50 ≤	Tilted	3
8	73	M	–	Hepatitis C	All-on-four (4)	Nobel speedy groovy	4.0	11.5	50 ≤	Straight	11
9	60	M	+	–	All-on-four (4)	Nobel speedy groovy	4.0	13	50 ≤	Straight	13
						Nobel speedy groovy	4.0	18	50 ≤	Tilted	13
						Nobel speedy groovy	4.0	13	50 ≤	Straight	13
						Nobel speedy groovy	4.0	18	50 ≤	Tilted	13
10	60	M	–	HT	All-on-four (4)	Straumann bone level tapered	4.1	18	50 ≤	Tilted	32
11	66	F	–	Arrhythmia	All-on-four + 1 (5)	Nobel parallel CC	3.75	8.5	40	Straight	5
				Osteoporosis		Nobel speedy groovy	4.0	10	45	Straight	5