Replacement of the Four Maxillary Incisors with a Fixed Dental Prosthesis Using an Early Loading Protocol
In March 2004, a 46-year-old female patient presented, seeking options to replace her existing acrylic maxillary removable partial denture, which replaced the four maxillary incisor teeth. She had been wearing this partial denture for approximately 15 years, the teeth having been extracted when the patient was in her early twenties. She did not want a further removable prosthesis as she was unhappy with the appearance of the flange on the denture. She was interested in exploring options for a fixed solution as long as the esthetic outcomes were not adverse. The patient was in good health, with no systemic contraindications to implant therapy. She had good oral hygiene and was a well-motivated individual with sound natural teeth and healthy periodontal support.
Surgical SAC classification
Advanced
Prosthodontic SAC classification
Straightforward
Learner Level
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1
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2
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3
|
Source
Treatment Guide 2
CME/CPD
0.15 hours
Purchase price
10
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General information
| Case Type | Extended Space |
|---|---|
| Jaw | Maxilla |
| Area | Anterior |
| # of Teeth | 4 |
| # of Implants | 2 |
| Type of Implants | One-Piece|Reduced-Diameter |
| Attachment | One-Piece|Reduced-Diameter |
| Bone Augmentation | No |
|---|---|
| Augmentation Materials | - |
| Guided Surgery | Yes |
| Soft Tissue Grafting | None |
| 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 | Up to three missing teeth to be replaced with an implant-borne restoration or restorations |
| Modality | - |
| Placement Protocol | Early or late implant placement |
| Tooth Site | - |
| Socket Morphology | - |
| Socket Integrity | - |
| Bone Volume | Horizontally and vertically sufficient |
| Anatomic Risk | Low |
| Esthetic Risk | Medium |
| 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 meso-structure Cemented, with meso-structure |
| Maxillomandibular Relationship | - |
| Mesio-Distal Space | Adequate for the replacement of all missing teeth |
| Inter-Arch Distance | - |
| Bruxism | Absent |
| Esthetic Risk | Medium |
| Provisional Implant-Supported Prosthesis | - - |
| Interim Prosthesis during Healing | Removable Removable |
| Occlusion/Articulation | Irregular, with no need for correction |
| Occlusal Scheme/Issues | - |
Surgical SAC Modifiers
| Periodontal Status | Healthy |
|---|
Prosthodontic SAC Modifiers
| Soft Tissue Contour and Volume | Ideal |
|---|
General SAC Modifiers
| Oral Hygiene and Compliance | Good |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | Completed |
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