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PubMed · 1809509

Soft-tissue considerations in esthetic dentistry.

H I Bader
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Abstract

The marriage of periodontics with esthetic/restorative dentistry, or the "perio-esthetic connection," may be the most critical interdisciplinary relationship in contemporary dental practice. The foundation provided by healthy, well-contoured, biologically sound, symmetrical supporting tissues significantly enhances the cosmetic and functional value of restorative and prosthetic reconstruction. Conversely, the finest restorative fabrication can be markedly diminished by unhealthy, poorly maintained gingival and periodontal tissues. The remarkable advances in the materials sciences have enabled us to restore the dentition to natural function and appearance, but, as with a portrait, the esthetic results are either enhanced or diminished by the boundaries of the frame. This paper focuses on the marginal and attached gingival tissues and the relationship of the lip line, without delving into the various surgical modalities currently available.

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DenturesEsthetics, DentalFemaleGingivaHumansLipOral HygieneOral Surgical Procedures, PreprostheticPeriodontal DiseasesJournal Article

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H I Bader. 1991. Soft-tissue considerations in esthetic dentistry.. https://pubmed.ncbi.nlm.nih.gov/1809509/

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Effect of water storage on tooth displacement in maxillary complete dentures.

The purpose of this study was to investigate the effect of water storage at 37 degrees C (1 week, 1 month and 3 months) on tooth displacement in maxillary complete dentures. Ten maxillary dentures were constructed with Clássico acrylic resin using the conventional method of packing in metallic flasks. Metallic reference pins were placed in the incisal border of the central incisors (I), labial cusp of the first premolars (PM), and mesiolabial cusp of the second molars (M). Twelve hours after final flask closure, the acrylic resin was cured in water at 74 degrees C for 9 h. The flasks were removed from the thermo-polymerizing unit after water-cooling and the dentures were deflasked, finished and stored in water at a temperature of 37 degrees C for 1 week, 1 month and 3 months. At deflasking and at the water storage intervals, the I-I (incisor to incisor), PM-PM (pre-molar to pre-molar), and M-M (molar to molar) transversal distances, and LI-LM (left incisor to left molar) and RI-RM (right incisor to right molar) anteroposterior distances were measured using an optical microscope with 0.0005 mm accuracy. Data were submitted to ANOVA and Tukey's test (5%). Comparing the evaluation periods for each individual transversal and anteroposterior reference point, no statistically significant differences were observed among deflasking and the water storage intervals for I-I, PM-PM, M-M and RI-RM distances (p>0.05). For LI-LM, however, deflasking values were statistically different from those of 1-week, 1-month and 3-month water storage intervals (p<0.05), which, in turn, did not differ statistically to each other (p>0.05). These results confirm the complexity of tooth displacement in complete dentures. From a clinical standpoint, the difference observed in LI-LM distance after water storage would not be detected by the patients during clinical use.

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