Iatrogenic Complications Managed by Replacing Prosthetic Components: Non-surgical Approach
A male patient had lost teeth 11 and 22 as a result of a bicycle accident at age 14. In his adolescent years, a removable prosthesis had replaced the missing teeth. At age 21, the patient was referred by his dentist to the university clinic for treatment of the missing teeth 11 and 22 with implants. He was in good health and a nonsmoker. The absence of teeth 11 and 22 over many years had led to significant atrophy of the alveolar ridge, particularly at site 11. As a first step, the alveolar ridge was augmented using a block graft to replace the lost bone. A Straumann SP implant (diameter 4.1 mm, length 12 mm; Institut Straumann AG, Basel, Switzerland) and a Straumann Narrow Neck implant (length 10 mm) were inserted in the correct location and axial position at sites 11 and 22, respectively, six months later. After three months of healing and subsequent reentry, the patient returned to the referring dentist to receive the prosthetic restoration. The patient was seen again six months after the restoration had been placed. The frontal view showed a high smile line, an irregular gingival profile, and a bluish-gray tinge to implant crowns 11 and 22 compared to the natural dentition.
Surgical SAC classification
Complex
Prosthodontic SAC classification
Advanced
Learner Level
|
1
|
2
|
3
|
Source
Treatment Guide 8
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 | Maxilla |
| Area | Anterior |
| # of Teeth | 2 |
| # of Implants | 2 |
| Type of Implants | One-Piece|Reduced-Diameter |
| Attachment | One-Piece|Reduced-Diameter |
| Bone Augmentation | Staged |
|---|---|
| Augmentation Materials | Autogenous block(s) |
| Guided Surgery | No |
| 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 | 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 vertically or deficient vertically AND horizontally |
| Anatomic Risk | High |
| Esthetic Risk | High |
| Complexity | High |
| Risk of Complications | High |
Prosthodontic SAC classification
| SAC Level | Advanced |
|---|---|
| Defining Characteristics | One missing tooth to be replaced by an implant-borne crown |
| Loading Protocol | Conventional or early |
| Retention | Screw-retained Screw-retained |
| 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 | Removable Removable |
| Occlusion/Articulation | - |
| 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 | Sufficient |
|---|---|
| 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