Case

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Recurrent Peri-implantitis Leading to Implant Removal

Lisa J A Heitz-Mayfield

A 65-year-old female patient was referred to the periodontist for assessment and management of implant site 12. Implant 12 had been placed ten years previously and restored with a cemented single crown. The patient was a non-smoker in good general and periodontal health. On examination there were 7 mm probing depths at implant 12 with suppuration and bleeding on probing. The patient was aware of the presence of pus but had no discomfort. A periapical radiograph showed marginal bone loss to approximately the third thread of the implant. Previous radiographs obtained from the referring clinician indicated that there had been progressive bone loss since the implant was restored. A diagnosis of periimplantitis was made.

General information

Case Type Single-Tooth Space
Jaw Maxilla
Area Anterior
# of Teeth 1
# of Implants 1
Type of Implants Two-Piece
Attachment Two-Piece
Bone Augmentation No
Augmentation Materials -
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 Early or late implant placement
Tooth Site -
Socket Morphology -
Socket Integrity -
Bone Volume Horizontally and vertically sufficient
Anatomic Risk Low
Esthetic Risk Medium
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 Angle Class I and III
Mesio-Distal Space Symmetry +/- 1 mm of contra-lateral tooth
Inter-Arch Distance -
Bruxism -
Esthetic Risk Medium
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 Ideal

General SAC Modifiers

Oral Hygiene and Compliance Good
Access Adequate
Craniofacial/Skeletal Growth Completed