Missing Maxillary Central Incisor, Single Implant Replacement with Adjacent Tooth Restoration
The patient presented with a failing tooth-supported fixed dental prosthesis with cantilever extension replacing the right maxillary central incisor. His chief presenting complaint was poor esthetics, in particular the dark discolored margin around the abutment tooth, the maxillary left central incisor. He reported a history of trauma at a young age, which necessitated the replacement of his maxillary right central incisor as well as root canal therapy of the adjacent left central incisor. The existing prosthesis had been in situ for over 20 years. The initial periapical radiograph displayed good proximal bone levels at the adjacent teeth and a wide incisive canal, which was a concern. The left central incisor presented a very wide root canal treatment with compromised radicular dentin thickness, which was a consideration in the decision between a new tooth-supported fixed dental prosthesis vs. an implant-supported prosthesis. After a lengthy discussion on the risks and benefits of both treatment options, the patient decided on a single-tooth implant replacement.
Surgical SAC classification
Advanced
Prosthodontic SAC classification
Complex
Learner Level
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1
|
2
|
3
|
Source
User Case
CME/CPD
0.25 hours
Purchase price
10
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General information
| Case Type | Single-Tooth Space |
|---|---|
| Jaw | Maxilla |
| Area | Anterior |
| # of Teeth | 1 |
| # of Implants | 1 |
| Type of Implants | Two-Piece |
| Attachment | Two-Piece |
| Bone Augmentation | Simultaneous |
|---|---|
| Augmentation Materials | Xenogenous |
| Guided Surgery | - |
| Soft Tissue Grafting | Staged |
| Abutment Type | Customized |
| Prosthesis Type | FDP |
Esthetic Risk Assessment
| Esthetic Risk Factors | Low | Medium | High |
|---|---|---|---|
| Medical Status | Healthy | Compromised | |
| Smoking Habit | Non-smoker | Light smoker (< 10 cigarettes per day) | Heavy smoker (>= 10 cigarettes per day) |
| Patient's Esthetic Expectations | Low | Medium | High |
| Lip Line | No exposure of papillae | Exposure of papillae | Full exposure of mucosa margin |
| Periodontal Phenotype | Low-scalloped, thick | Medium-scalloped, medium-thick | High-scalloped, thin |
| Shape of Tooth Crowns | Rectangular | Triangular | |
| Infection at Implant Site | None | Chronic | Acute |
| Bone Level at Adjacent Teeth | <= 5 mm to contact point | 5.5 to 6.5 mm to contact point | > 7 mm to contact point |
| Prosthodontic Status of Neighboring Teeth | Virgin | Restored | |
| Width of Edentulous Span | 1 tooth (>= 7 mm) | 1 tooth (< 7 mm) | 2 teeth or more |
| Soft Tissue Anatomy | Intact | Defective | |
| Bone Volume | Horizontally and vertically sufficient | Horizontally deficient | Deficient vertically or deficient vertically AND horizontally |
* General SAC assessment modifiers that are also part of the ERA. To avoid redundancy they are listed in this section even if no complete ERA has been made.
** Not applicable to the ERA of immediate placement cases and replaced by "Socket Integrity" listed below under "Surgical SAC Classification". For all other placement types this value is a classification determinant and listed here even if no complete ERA has been made.
Surgical SAC classification
| SAC Level | Advanced |
|---|---|
| Defining Characteristics | One missing tooth to be replaced by an implant-borne prosthesis |
| Modality | - |
| Placement Protocol | Early or late implant placement |
| Tooth Site | - |
| Socket Morphology | - |
| Socket Integrity | - |
| Bone Volume | Deficient horizontally, allowing simultaneous augumentation |
| Anatomic Risk | Low |
| Esthetic Risk | High |
| Complexity | Moderate |
| Risk of Complications | Moderate |
Prosthodontic SAC classification
| SAC Level | Complex |
|---|---|
| Defining Characteristics | One missing tooth to be replaced by an implant-borne crown |
| Loading Protocol | Conventional or early |
| Retention | Cemented, with meso-structure Cemented, with meso-structure |
| Maxillomandibular Relationship | Angle Class I and III |
| Mesio-Distal Space | Symmetry +/- 1 mm of contra-lateral tooth |
| Inter-Arch Distance | - |
| Bruxism | - |
| Esthetic Risk | High |
| Provisional Implant-Supported Prosthesis | Prosthodontic margin > 3 mm apical to mucosal margin Prosthodontic margin > 3 mm apical to mucosal margin |
| Interim Prosthesis during Healing | Fixed Fixed |
| Occlusion/Articulation | - |
| Occlusal Scheme/Issues | - |
Surgical SAC Modifiers
| Periodontal Status | Healthy |
|---|
Prosthodontic SAC Modifiers
| Soft Tissue Contour and Volume | Slightly compromised |
|---|
General SAC Modifiers
| Oral Hygiene and Compliance | Good |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | Completed |
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