Table 1.
Aesthetic risk assessment (ERA) table outlining the factors that can be assessed to determine the level of aesthetic risk associated with implant tooth replacements irrespective of the protocol for implant placement or loading [17].
| Aesthetic factor | Level of risk | ||
|---|---|---|---|
| Low | Medium | High | |
| Medical status | Healthy, uneventful healing | Compromised healing | |
| Smoking habit | Nonsmoker | Light smoker (≤ 10 cigarettes/day) | Heavy smoker (> 10 cigarettes/day) |
| Gingival display at full smile | Low | Medium | High |
| Width of edentulous span | 1 tooth (≥ 7 mm) 1 tooth (≥ 6 mm) |
1 tooth (≥ 7 mm) 1 tooth (≥ 6 mm) |
2 teeth or more |
| Shape of tooth crowns | Rectangular | Triangular | |
| Restorative status of neighboring teeth | Virgin | Restored | |
| Gingival phenotype | Low-scalloped, thick | Medium-scalloped, medium-thick | High-scalloped, thin |
| Infection at the implant site | None | Chronic | Acute |
| Soft tissue anatomy | Soft tissue intact | Soft tissue defects | |
| Bone level at adjacent teeth | ≤ 5 mm to contact point | 5.5–6.5 mm to contact point | ≥7 mm to contact point |
| Facial bone-wall phenotype | Thick-wall phenotype ≥ 1 mm thickness | Thin-wall phenotype < 1 mm thickness | |
| Bone anatomy of alveolar crest | No bone deficiency | Horizontal bone deficiency | Vertical bone deficiency |
| Patient's aesthetic expectations | Realistic expectations | Unrealistic | |
| Expectations | |||