Autologous Block Graft and Guided Bone Regeneration (GBR) for Horizontal Ridge Augmentation in the Posterior Mandible
An 18-year-old man was referred for implant therapy in the posterior mandible to the Department of Oral Surgery and Stomatology (University of Bern, Switzerland). He was healthy and did not smoke. Tooth 35 was congenitally missing, involving a single-tooth edentulous space that offered an adequate mesiodistal dimension for implant placement but exhibited a typical pattern of buccal flattening. A panoramic radiograph was obtained, which revealed a sufficient vertical bone height above the mandibular canal and a normal bone structure in the edentulous area.
Surgical SAC classification
Complex
Prosthodontic SAC classification
Straightforward
Learner Level
|
1
|
2
|
3
|
Source
Treatment Guide 7
CME/CPD
0.25 hours
Purchase price
10
You must be logged in to access or purchase this item.
There is a wealth of resources you can access by signing up
as an ITI Member. Learn more about ITI membership benefits.
General information
| Case Type | Single-Tooth Space |
|---|---|
| Jaw | Mandible |
| Area | Posterior |
| # of Teeth | 1 |
| # of Implants | 1 |
| Type of Implants | One-Piece |
| Attachment | One-Piece |
| Bone Augmentation | Horizontal|Staged |
|---|---|
| Augmentation Materials | Autogenous chips|Autogenous block(s)|Xenogenous|Membrane |
| 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 | 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, requiring prior grafting |
| Anatomic Risk | Low |
| Esthetic Risk | Low |
| Complexity | High |
| Risk of Complications | Moderate |
Prosthodontic SAC classification
| SAC Level | Straightforward |
|---|---|
| Defining Characteristics | One missing tooth to be replaced by an implant-borne crown |
| 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 tooth +/- 1 mm |
| Inter-Arch Distance | Ideal tooth height +/- 1 mm |
| Bruxism | Absent |
| Esthetic Risk | Low |
| Provisional Implant-Supported Prosthesis | - - |
| Interim Prosthesis during Healing | - - |
| Occlusion/Articulation | - |
| Occlusal Scheme/Issues | - |
Surgical SAC Modifiers
| Periodontal Status | Healthy |
|---|
Prosthodontic SAC Modifiers
| Soft Tissue Contour and Volume | - |
|---|
General SAC Modifiers
| Oral Hygiene and Compliance | Good |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | Completed |
Share this page
Download the QR code with a link to this page and use it in your presentations or share it on social media.
Download QR code