マナーズ・エイペックス・システム:前歯茎の深刻な骨不足に即時インプラント

Jan 24, 2024

Apex

 

Age: 23 years
Main concern: Request for implantation in the anterior maxilla
Present medical history: Poorly repaired prosthesis for several years, now removed
Examination findings: A4 porcelain crown repair, loose. A3 is loose, A2-B2 missing, B3 tooth preparation. Gingival swelling.
Preliminary diagnosis: Tooth column deficiency

 

Preoperative Examination
 

 

Oral cavity photograph

 

Frontal Occlusion Image

NOTE: CBCT (Cone Beam Computed Tomography)

Oral cavity photograph
Radiological Examination-1

Radiological Examination - Preoperative CBCT

 

Observation: A3 shows a large-area radiopaque shadow at the root apex, and A4 exhibits bone destruction on the labial side and near the mesial aspect.

Radiological Examination - Preoperative CBCT

 

Sagittal section reveals bone deficiency in the labial wall near the mesial aspect of A4 and on the buccal side of A3, while the lingual wall remains intact. Adequate bone volume is observed for A2 and B2.

Radiological Examination-2

 

Treatment Plan
 

 

 

Three-dimensional reconstruction

1. Extraction of A4 and A3, followed by the placement of three dental implants from A4 to B, and restoration with five dental crowns.

2. Immediate implantation with thorough removal of granulation tissue.

3. Digitally guided preoperative implant design focused on aesthetic restoration to achieve ideal implant placement orientation.

 

Three-dimensional reconstruction: Bone deficiency observed in the labial wall near the mesial aspect of A4 and on the buccal side of A3, while the lingual wall remains intact. Adequate bone volume is observed for A2 and B2.

Preoperative CBCT three-dimensional reconstruction
Preoperative CBCT three-dimensional reconstruction
Digital Implant Design
 

 

 

Guided by the restoration, virtual implantation of dental implants is performed.

Extensive bone destruction is observed in A3, leading to bone deficiencies in A4 and A2.

Digital Implant Design-1

 

Guided by the restoration, virtual implantation of dental implants is performed.

Due to bone deficiency in the distal aspect of A2, the design is modified to place the implant in the A1 region, avoiding the area of bone deficiency.

Digital Implant Design-2

 

 

Guided by the restoration, virtual implantation of dental implants is performed.

Extensive bone destruction is observed in A3, resulting in bone deficiencies in A4 and A2.

Digital Implant Design-3

 

 

Guided by the restoration, virtual implantation of dental implants is performed.

It is observed that the buccal-lingual bone width is adequate in the A1 region.

Digital Implant Design-4

 

 

Guided by the restoration, virtual implantation of dental implants is performed.

It is observed that the buccal-lingual bone width is adequate in the B2 region.

Digital Implant Design-5
Surgical Procedure
 

 

 

Extraction of the affected tooth and upon flap elevation, extensive bone deficiency is observed in the mesial aspect of A4 and the distal aspect of A2.

Surgical Procedure-1

 

 

Extraction of the affected tooth and upon flap elevation, extensive bone deficiency is observed in the mesial aspect of A4 and the distal aspect of A2.

Surgical Procedure-2

 

 

Thorough removal of granulation tissue and positioning with a round bur.

Surgical Procedure-3

 

 

A1B2 pilot drill positioning, and verification of axial alignment with a parallel pin.

Surgical Procedure-4

 

 

Using a drill guide and parallel pin, gradually expanding the hole while verifying implant depth and alignment for parallelism.

Surgical Procedure-5

 

Manners Apex System Dental Iplant

Sequential implantation of three Manners Apex dental implants.

manners-apex-system-dental-implant

 

 

 

Manners Apex System Dental Iplant

Sequential implantation of three Manners Apex dental implants.

Sequential implantation of three Manners Apex dental implants

 

 

Preparation of nourishing holes and soft tissue debridement.

Surgical Procedure-6

 

 

Performing Guided Bone Regeneration (GBR) with the implantation of Osseograft bone powder and a bone membrane.

Surgical Procedure-7

 

 

Aligning and suturing the gingiva and shaping the gingival papilla with nylon thread.

Surgical Procedure-8

 

Postoperative Cone Beam Computed Tomography (CBCT)
 

 

Postoperative Cone Beam Computed Tomography CBCT-1

Postoperative Cone Beam Computed Tomography CBCT-2

Postoperative Cone Beam Computed Tomography CBCT-3

 

Clinical Summary
 

 

Postoperative Summary: Implantation cases in the aesthetic zone of the anterior teeth have consistently been challenging and high-risk. Adequate preoperative design assessment, along with predicting the effects of bone augmentation and analyzing the type of bone deficiency, are crucial.

 

The Manners Apex dental implant, known for its classic bone-level cylindrical design, effectively dissipates stress in the implanted bone. A well-designed platform transfer contributes to achieving favorable aesthetic outcomes.


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