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A root submergence technique for pontic site development in fixed dental prostheses in the maxillary anterior esthetic zone.

Choi S, Yeo IS, Kim SH, Lee JB, Cheong CW, Han JS - J Periodontal Implant Sci (2015)

Bottom Line: The submerged roots at the pontic sites preserved the surrounding periodontium without any periapical pathology.The gingival contour at the pontic site was maintained in harmony with those of the adjacent teeth, as well as the overall form of the arch.The results of this clinical report indicate that a root submergence technique can be successfully applied in pontic site development with fixed dental prostheses, especially in the maxillary anterior esthetic zone.

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics & Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea.

ABSTRACT

Purpose: This case report discusses the effect of a root submergence technique on preserving the periodontal tissue at the pontic site of fixed dental prostheses in the maxillary anterior aesthetic zone.

Methods: Teeth with less than ideal structural support for fixed retainer abutments were decoronated at the crestal bone level. After soft tissue closure, the final fixed dental prostheses were placed with the pontics over the submerged root area. Radiographic and clinical observations at the pontic sites were documented.

Results: The submerged roots at the pontic sites preserved the surrounding periodontium without any periapical pathology. The gingival contour at the pontic site was maintained in harmony with those of the adjacent teeth, as well as the overall form of the arch.

Conclusions: The results of this clinical report indicate that a root submergence technique can be successfully applied in pontic site development with fixed dental prostheses, especially in the maxillary anterior esthetic zone.

No MeSH data available.


Radiographic images of the patient in Case 2. (A) At the first visit, a cavity extended to the crestal bone level on the distal surface of the maxillary right lateral incisor. (B) No pathology was noted three months after the final restoration.
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Figure 2: Radiographic images of the patient in Case 2. (A) At the first visit, a cavity extended to the crestal bone level on the distal surface of the maxillary right lateral incisor. (B) No pathology was noted three months after the final restoration.

Mentions: An 83-year-old male patient presented with a gross caries on the disto-cervical surface of the maxillary right lateral incisor with food impaction and discoloration. Clinical and radiographic evaluation indicated that the tooth was non-vital, and that the cavity extended to the crestal bone level (Fig. 2A). Among several treatment options, ranging from a post-and-core crown to implant placement following a tooth extraction, the patient decided to submerge the root of the lateral incisor and undergo restoration with a three-unit fixed dental prosthesis. The prosthesis was intended to have the additional benefit of addressing severe attrition in the adjacent maxillary right central incisor and canine. Single-visit endodontic treatment was performed on the maxillary right lateral incisor, with decoronation at the level of the alveolar crest. No soft tissue augmentation was performed on the decoronated area, and the root was completely covered by gingival tissue five months after the decoronation procedure. A three-unit metal ceramic restoration was fabricated and cemented with a resin-modified glass-ionomer cement. At a three-month follow-up visit, the architecture of the hard and soft tissue was found to have been preserved at the pontic site, and no pathology was noted (Fig. 2B).


A root submergence technique for pontic site development in fixed dental prostheses in the maxillary anterior esthetic zone.

Choi S, Yeo IS, Kim SH, Lee JB, Cheong CW, Han JS - J Periodontal Implant Sci (2015)

Radiographic images of the patient in Case 2. (A) At the first visit, a cavity extended to the crestal bone level on the distal surface of the maxillary right lateral incisor. (B) No pathology was noted three months after the final restoration.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4556801&req=5

Figure 2: Radiographic images of the patient in Case 2. (A) At the first visit, a cavity extended to the crestal bone level on the distal surface of the maxillary right lateral incisor. (B) No pathology was noted three months after the final restoration.
Mentions: An 83-year-old male patient presented with a gross caries on the disto-cervical surface of the maxillary right lateral incisor with food impaction and discoloration. Clinical and radiographic evaluation indicated that the tooth was non-vital, and that the cavity extended to the crestal bone level (Fig. 2A). Among several treatment options, ranging from a post-and-core crown to implant placement following a tooth extraction, the patient decided to submerge the root of the lateral incisor and undergo restoration with a three-unit fixed dental prosthesis. The prosthesis was intended to have the additional benefit of addressing severe attrition in the adjacent maxillary right central incisor and canine. Single-visit endodontic treatment was performed on the maxillary right lateral incisor, with decoronation at the level of the alveolar crest. No soft tissue augmentation was performed on the decoronated area, and the root was completely covered by gingival tissue five months after the decoronation procedure. A three-unit metal ceramic restoration was fabricated and cemented with a resin-modified glass-ionomer cement. At a three-month follow-up visit, the architecture of the hard and soft tissue was found to have been preserved at the pontic site, and no pathology was noted (Fig. 2B).

Bottom Line: The submerged roots at the pontic sites preserved the surrounding periodontium without any periapical pathology.The gingival contour at the pontic site was maintained in harmony with those of the adjacent teeth, as well as the overall form of the arch.The results of this clinical report indicate that a root submergence technique can be successfully applied in pontic site development with fixed dental prostheses, especially in the maxillary anterior esthetic zone.

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics & Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea.

ABSTRACT

Purpose: This case report discusses the effect of a root submergence technique on preserving the periodontal tissue at the pontic site of fixed dental prostheses in the maxillary anterior aesthetic zone.

Methods: Teeth with less than ideal structural support for fixed retainer abutments were decoronated at the crestal bone level. After soft tissue closure, the final fixed dental prostheses were placed with the pontics over the submerged root area. Radiographic and clinical observations at the pontic sites were documented.

Results: The submerged roots at the pontic sites preserved the surrounding periodontium without any periapical pathology. The gingival contour at the pontic site was maintained in harmony with those of the adjacent teeth, as well as the overall form of the arch.

Conclusions: The results of this clinical report indicate that a root submergence technique can be successfully applied in pontic site development with fixed dental prostheses, especially in the maxillary anterior esthetic zone.

No MeSH data available.