Case

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Management of a Fractured Implant Supporting a Screw-retained Metal-ceramic Restoration

The fracture of an implant after it has been restored is one of the most severe complications. It most frequently occurs in partially edentulous jaws (1.5%). Most implant fractures involve implants with a diameter of 3.75 mm made of commercially pure titanium (Eckert 2010). Unfortunately, many cases are not reported or documented by the clinicians involved in resolving the problems created by the fracture. This case report describes the management of an implant fracture at site 36 in a middle-aged male patient. The implant had been restored with a screw-retained metal-ceramic crown.

Surgical SAC classification
Straightforward
Prosthodontic SAC classification
Straightforward
Learner Level
Source
Treatment Guide 8
CME/CPD
0.25 hours
Purchase price
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General information

Case Type Single-Tooth Space
Jaw Mandible
Area Posterior
# 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 Straightforward
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 Low
Complexity Low
Risk of Complications Low

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 Screw-retained Screw-retained
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
Publication date: Apr 28, 2016 Last review date: Apr 22, 2022 Next review date: Apr 22, 2025
1 - Beginner Clinical Case Treatment Guide 8

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