Journal List > J Korean Acad Prosthodont > v.57(4) > 1136053

Lee, Hong, Paek, Noh, and Kwon: Utilization of digital technology in fabricating mandibular implant overdenture for skeletal class II edentulous patient: A case report

Abstract

Unlike class I patients, skeletal class II patients have unstable occlusion thus leading to instability of mandibular complete denture. Therefore, mandibular implant overdenture has been the standard of care due to its advantages in stability and retention. The types of attachments can be divided into two categories: solitary and bar type. The indications vary between two categories. In this clinical report, digital technology was utilized from the implant planning to the choice of appropriate attachment. Implants were placed at the desired location as previously planned in terms of angle and depth. Maxillary removable partial denture and mandibular implant overdenture are expected to have fair prognosis. (J Korean Acad Prosthodont 2019;57:364-73)

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Fig. 1.
Pre-operative extraoral photographs. (A) Frontal view, (B) Lateral view.
jkap-57-364f1.tif
Fig. 2.
Radiographic view. (A) Panoramic view, (B) Right temporomandibular joint, (C) Left temporomandibular joint.
jkap-57-364f2.tif
Fig. 3.
Intraoral photographs. (A) Maxilla, (B) Right lateral, (C) Frontal, (D) Left lateral, (E) Mandible.
jkap-57-364f3.tif
Fig. 4.
Model analysis showing existing conventional complete denture. (A) Frontal view, (B) Right lateral view, (C) Anterior teeth.
jkap-57-364f4.tif
Fig. 5.
Esthetics and function were verified with interim prostheses. (A) Maxilla, (B) Right lateral, (C) Frontal, (D) Left lateral, (E) Mandible.
jkap-57-364f5.tif
Fig. 6.
Space analysis - bar type attachment. (A) Frontal view, (B) Occlusal view.
jkap-57-364f6.tif
Fig. 7.
Space analysis - CM LOC attachment. (A) #42 area, (B) #32 area.
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Fig. 8.
Space analysis - CM LOC attachment. (A) #43 area, (B) #33 area.
jkap-57-364f8.tif
Fig. 9.
Application of surgical stent using (A) Superposition of CT data and analysis model, (B) Intra oral photograph surgical stent fixed with pins, (C) Post operative panoramic view.
jkap-57-364f9.tif
Fig. 10.
(A) Face-bow transfer, (B) Mounting with mandibular temporary denture and maxillary occlusal rim to make maxillary fixed prostheses.
jkap-57-364f10.tif
Fig. 11.
Preparing for impression. (A) Definitive fixed prostheses on maxilla, CM LOC abutment (B) on mandible connected with CM LOC Female (C).
jkap-57-364f11.tif
Fig. 12.
Final impression taking (B, E) with individual tray (A, D) and definitive cast fabrication (C, F).
jkap-57-364f12.tif
Fig. 13.
(A) Centric relation record, Evaluation of occlusal vertical dimension with (B) interim prostheses (C), occlusal rim.
jkap-57-364f13.tif
Fig. 14.
Bilaterally balanced occlusion. (A) Left Lateral movement, (B) Centric occlusion, (C) Right Lateral movement.
jkap-57-364f14.tif
Fig. 15.
Direct method for solitary attachment. (A) Metal frame work connected with (B) CM LOC female.
jkap-57-364f15.tif
Fig. 16.
Clinical remounting. (A) Right side view, (B) Frontal view, (C) Left side view.
jkap-57-364f16.tif
Fig. 17.
Postoperative intraoral view. (A) Maxilla, (B) Right lateral, (C) Frontal, (D) Left lateral, (E) Mandible.
jkap-57-364f17.tif
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