Article (Scientific journals)
Clinical Characteristics of Abutment Teeth with Gingival Discoloration
Ristic, Ljubisa; Dakovic, Dragana; Postic, Srdjan et al.
2018In Journal of Prosthodontics
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Abstract :
[en] Purpose: The grey-bluish discoloration of gingiva (known as “amalgam tattoo”) does not appear only in the presence of amalgam restorations. It may also be seen in cases of teeth restored with cast dowels and porcelain-fused-to-metal (PFM) restorations. The aim of this article was to determine the clinical characteristics of abutment teeth with gingival discoloration. Materials and Methods: This research was conducted on 25 patients referred for cast dowel and PFM restorations. These restorations were manufactured from Ni-Cr alloys. Ninety days after cementing the fixed prosthodontic restorations, the abutment teeth (n=61) were divided into a group with gingival discoloration (GD) (n=25) and without gingival discoloration (NGD) (n=36). The control group (CG) comprised the contralateral teeth (n = 61). Plaque index, gingival index, clinical attachment level, and probing depth were assessed before fabrication and also 90 days after cementation of the PFM restorations. Results: The gingival index, clinical attachment level, and probing depths of the abutment teeth that had GD were statistically higher before restoration, in comparison with the abutment teeth in theNGDand control groups.Ninety days after cementation, the abutment teeth with GD had significantly lower gingival indexes and probing depths, compared to the abutment teeth in the NGD group. Both abutment teeth groups (GD and NGD) had significantly higher values of clinical attachment levels when compared to the control group. Therewere no statistically significant differences in plaque index values between the study groups. Conclusions: The results of this study indicated that impairment of periodontal status of abutment teeth seemed to be related to the presence of gingival discolorations. Therefore, fabrication of fixed prosthodontic restorations requires careful planning and abutment teeth preparation to minimize the occurrence of gingival discolorations. Clinical relevance: With careful preparation of abutment teeth for cast dowels and crown restorations it may be possible to decrease the frequency of gingival discolorations adjacent to abutment teeth.
Disciplines :
Dentistry & oral medicine
Author, co-author :
Ristic, Ljubisa;  Military Medical Academy > Dental Clinic
Dakovic, Dragana;  Military Medical Academy > Dental Clinic
Postic, Srdjan;  University of Belgrade School of Dental Medicine > Department of Prosthodontics
Lazic, Zoran;  Military Medical Academy > Dental Clinic
Bacevic, Miljana ;  Université de Liège - ULiège > Département de sciences dentaires > Biomatériaux dentaires
Vucevic, Dragana;  Military Medical Academy > Institute for Medical Research
Language :
English
Title :
Clinical Characteristics of Abutment Teeth with Gingival Discoloration
Publication date :
2018
Journal title :
Journal of Prosthodontics
ISSN :
1059-941X
eISSN :
1532-849X
Publisher :
Blackwell Munksgaard, Copenhagen, Denmark
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 November 2017

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