Immediate Placement of an Implant in a Mandibular First Molar Site
A 32-year-old male patient in good general health, a nonsmoker, presented with a very large carious lesion in the mandibular left first molar (tooth 36). The probing depth around the molar was between 1 and 2 mm. This tooth was considered hopeless for three reasons: The carious lesion at the level of the root furcation that could lead to tooth fracture, the tooth was extruded because of the loss of almost the entire crown. As a result, the crown-to-root ratio was unfavorable and maintaining the tooth by means of crown lengthening would lead to furcation exposure. Based on these considerations, tooth extraction and immediate implant placement (Type 1) was planned in agreement with the patient. Immediate placement offers an obvious advantage to the patient, as the time interval between tooth extraction and the placement of the final restoration is minimized. Additionally, patient morbidity is reduced.
Surgical SAC classification
Advanced
Prosthodontic SAC classification
Straightforward
Learner Level
|
1
|
2
|
3
|
Source
Treatment Guide 3
CME/CPD
0.25 hours
Purchase price
10
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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 | No |
|---|---|
| Augmentation Materials | 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 | Advanced |
|---|---|
| Defining Characteristics | One missing tooth to be replaced by an implant-borne prosthesis |
| Modality | - |
| Placement Protocol | Immediate implant placement |
| Tooth Site | Mandibular molar |
| Socket Morphology | Multi-root socket |
| Socket Integrity | Sufficient, with intact bone walls |
| Bone Volume | Sufficient, with intact walls |
| Anatomic Risk | Low |
| Esthetic Risk | Low |
| Complexity | Moderate |
| 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 | Sufficient |
|---|---|
| Access | Adequate |
| Craniofacial/Skeletal Growth | Completed |
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