Replacement of Multiple Teeth in a Partially Dentate Posterior Mandible with a Fixed Dental Prosthesis Using an Early Loading Protocol
A 55-year-old female patient was referred for consultation and treatment. Her chief complaint was pain associated with the mandibular right second premolar (tooth 45). The patient denied systemic or oral diseases capable of compromising dental care. She had a history of adult periodontitis, for which she continued to be treated. Her response to therapy and motivation towards dental health were considered excellent. Intraoral examination revealed a cantilever fixed dental prosthesis in the mandibular right quadrant, with retainers on teeth 45 and 47,and pontics at sites 44 and 46.The retainer on tooth 45 was loose, and the tooth was carious. Radiographic evaluation confirmed the extent of the caries and the maintenance of bone around tooth 45 and in the pontic region 46.
Surgical SAC classification
Advanced
Prosthodontic SAC classification
Straightforward
Learner Level
|
1
|
2
|
3
|
Source
Treatment Guide 2
CME/CPD
0.15 hours
Purchase price
10
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General information
| Case Type | Short Space |
|---|---|
| Jaw | Mandible |
| Area | Posterior |
| # of Teeth | 3 |
| # of Implants | 2 |
| Type of Implants | One-Piece |
| Attachment | One-Piece |
| Bone Augmentation | No |
|---|---|
| Augmentation Materials | - |
| Guided Surgery | No |
| Soft Tissue Grafting | None |
| Abutment Type | Standard |
| 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 | Up to three missing teeth to be replaced with an implant-borne restoration or restorations |
| Modality | - |
| Placement Protocol | Immediate implant placement |
| Tooth Site | Mandibular premolar, adjacent to mental foramen |
| Socket Morphology | Single-root socket |
| Socket Integrity | Sufficient, with intact bone walls |
| Bone Volume | Sufficient, with intact walls |
| Anatomic Risk | Moderate |
| Esthetic Risk | Low |
| Complexity | Moderate |
| Risk of Complications | Moderate |
Prosthodontic SAC classification
| SAC Level | Straightforward |
|---|---|
| Defining Characteristics | Up to three missing teeth to be replaced with an implant-borne restoration or restorations |
| Loading Protocol | Conventional or early |
| Retention | Cemented, with prosthesis margin < 3mm submucosal Cemented, with prosthesis margin < 3mm submucosal |
| Maxillomandibular Relationship | - |
| Mesio-Distal Space | Anatomic space corresponding to the missing teeth +/- 1 mm |
| Inter-Arch Distance | > 8 mm |
| Bruxism | Absent |
| Esthetic Risk | Low |
| Provisional Implant-Supported Prosthesis | Prosthodontic margin < 3 mm apical to mucosal crest Prosthodontic margin < 3 mm apical to mucosal crest |
| Interim Prosthesis during Healing | - - |
| Occlusion/Articulation | Harmonious |
| Occlusal Scheme/Issues | - |
Surgical SAC Modifiers
| Periodontal Status | History of periodontitis or genetic predisposition |
|---|
Prosthodontic SAC Modifiers
| Soft Tissue Contour and Volume | - |
|---|
General SAC Modifiers
| Oral Hygiene and Compliance | Good |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | Completed |
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