Research Article
Analyzing the Causes and Frequency of Early Dental Implant Failure among Iranians: An Epidemiological Study
Table 3
Surgery-related failures.
| | Surgery factors | | | |
| | Implant diameter (mm) | | | | | Narrow: 3.7> | 160 (16.3) | 12 (7.5) | | | Regular: 3.7–5 | 822 (83.6) | 30 (3.6) | | | Wide: 5< | 1 (0.1) | 0 (0.0) | | | Implant height (mm) | | | | | Short: 8> | 13 (1.3%) | 1 (7.7) | | | Regular: 8–12 | 955 (97.2%) | 40 (4.2) | | | Long: 12< | 15 (1.5%) | 1 (6.7) | | | Jaw | | | | | Maxilla | 470 (47.8%) | 18 (3.8) | | | Mandible | 513 (52.2%) | 24 (4.7) | | | Planting area | | | | | Anterior | 284 (28.9) | 14 (4.9) | | | Middle | 339 (34.5) | 8 (2.4) | | | Posterior | 360 (36.6) | 20 (5.6) | | | Surgical stage | | | | | Single | 140 (14.2) | 8 (5.7) | | | Two | 843 (85.8) | 34 (4.0) | | | Placement | | | | | Immediate | 124 (12.6) | 5 (4.0) | | | Delayed | 859 (87.4) | 37 (4.3) | | | Existence of grafts | | | | | Yes | 467 (47.5) | 17 (3.6) | | | No | 516 (52.5) | 25 (4.8) | | | Incidence during surgery | | | | | Fracture of implant fixtures | 1 (0.1) | 40 (4.1) | | | IAN exposure | 2 (0.2) | 1 (100) | | | None | 980 (99.7) | 1 (50) | | | Loading | | | <0.01 | | Yes | 18 (52.5%) | 18 (52.5) | | | No | 24 (2.5) | 24 (2.5) | |
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Note. Results obtained from Fisher’s exact test. Results obtained from the Chi-square test. |
