Autologous Iliac-Crest Graft for Anterior Blocks and Bilateral Sinus Floor Elevation in a Completely Edentulous Maxilla
A 56-year-old woman presented for treatment with complete edentulism of the maxilla. She had been using a complete removable denture since she was relatively young (age 30). Her chief complaint at presentation was lack of retention of the upper denture and a desire for a better restoration in order to improve retention, function, and esthetics. An initial clinical examination showed that the anterior maxilla was moderately atrophic both horizontally and vertically, also revealing a vertical deficiency of the posterior alveolar process. The mandible included natural teeth from 45 to 35, with previous extrusion of the anterior teeth that was being orthodontically treated. Also, there were two external hexagon dental implants at sites 46 and 36 that had been inserted elsewhere at a previous point in time. As the conditions in the mandible were healthy, including the teeth and the two implants, the patient had no complaints there.
Surgical SAC classification
Complex
Prosthodontic SAC classification
Complex
Learner Level
|
1
|
2
|
3
|
Source
Treatment Guide 7
CME/CPD
0.25 hours
Purchase price
10
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General information
| Case Type | Edentulous Maxilla |
|---|---|
| Jaw | Maxilla |
| Area | Full-Arch |
| # of Teeth | All |
| # of Implants | 8 |
| Type of Implants | One-Piece |
| Attachment | One-Piece |
| Bone Augmentation | Horizontal|Sinus Floor Elevation|Staged |
|---|---|
| Augmentation Materials | Autogenous chips|Autogenous block(s) |
| 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 | Complex |
|---|---|
| Defining Characteristics | Fully edentulous upper jaw to be rehabilitated with four or more implants |
| Modality | Fixed hybrid bridge on 5+ implants |
| Placement Protocol | - |
| Tooth Site | - |
| Socket Morphology | - |
| Socket Integrity | - |
| Bone Volume | Deficient vertically or deficient vertically AND horizontally |
| Anatomic Risk | High |
| Esthetic Risk | Medium |
| Complexity | High |
| Risk of Complications | High |
Prosthodontic SAC classification
| SAC Level | Complex |
|---|---|
| Defining Characteristics | Fully edentulous upper jaw to be rehabilitated with an implant-borne fixed dental prosthesis |
| Loading Protocol | Conventional or early |
| Retention | Cemented, with prosthesis margin < 3mm submucosal Cemented, with prosthesis margin < 3mm submucosal |
| Maxillomandibular Relationship | - |
| Mesio-Distal Space | - |
| Inter-Arch Distance | Average |
| Bruxism | Absent |
| Esthetic Risk | Medium |
| Provisional Implant-Supported Prosthesis | - - |
| Interim Prosthesis during Healing | Fixed Fixed |
| Occlusion/Articulation | - |
| Occlusal Scheme/Issues | Anterior guidance |
Surgical SAC Modifiers
| Periodontal Status | Healthy |
|---|
Prosthodontic SAC Modifiers
| Soft Tissue Contour and Volume | Significantly deficient |
|---|
General SAC Modifiers
| Oral Hygiene and Compliance | Good |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | Completed |
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