Replacement of a Congenitally Missing Upper Left Lateral Incisor with a Narrow Neck Implant, Restored with a Ceramo-Metal Crown, Transocclusally Screw-Retained
An 18 year-old female patient, a non-smoker,presented in 1999 during orthodontic treatment with a tooth gap in position 22 due to a congenitally missing permanent tooth 22 and a peg-shaped permanent tooth 12. Orthodontic treatment had started four years before, when the patient was 14 years old, to correct a complex situation by maxillary expansion in combination with a bracket treatment. The patient had been referred by the orthodontist for clarification of a possible implant therapy to define the ideal size of the tooth gap at site 22 as well as the necessary root parallelization for implant placement,i.e. final minor orthodontic corrections to create an ideal situation for implant placement.
Surgical SAC classification
Advanced
Prosthodontic SAC classification
Advanced
Learner Level
|
1
|
2
|
3
|
Source
Treatment Guide 1
CME/CPD
0.15 hours
Purchase price
10
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General information
| Case Type | Single-Tooth Space |
|---|---|
| Jaw | Maxilla |
| Area | Anterior |
| # of Teeth | 1 |
| # of Implants | 1 |
| Type of Implants | One-Piece|Reduced-Diameter |
| Attachment | One-Piece|Reduced-Diameter |
| Bone Augmentation | Horizontal|Simultaneous |
|---|---|
| Augmentation Materials | Xenogenous |
| 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 | Advanced |
|---|---|
| Defining Characteristics | One missing tooth to be replaced by an implant-borne crown |
| Modality | - |
| Placement Protocol | Early or late implant placement |
| Tooth Site | - |
| Socket Morphology | - |
| Socket Integrity | - |
| Bone Volume | Deficient horizontally, allowing simultaneous augumentation |
| Anatomic Risk | Low |
| Esthetic Risk | High |
| Complexity | Moderate |
| Risk of Complications | Moderate |
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 | - - |
| Occlusion/Articulation | - |
| Occlusal Scheme/Issues | - |
Surgical SAC Modifiers
| Periodontal Status | Healthy |
|---|
Prosthodontic SAC Modifiers
| Soft Tissue Contour and Volume | Slightly compromised |
|---|
General SAC Modifiers
| Oral Hygiene and Compliance | Good |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | In progress |
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