A clinician is evaluating the buccal corridor of a patient during smile design. The patient has a wide maxillary arch but the premolars appear lingually inclined, creating a negative space shadow. Which corrective approach provides the most predictable and comprehensive esthetic improvement?
When cementing a translucent feldspathic porcelain veneer on tooth #8, which has a slightly dark underlying tooth shade (A3.5), what is the most critical factor in cement selection to achieve the final desired shade of A1?
A 55-year-old male patient with severe attrition requires a full-mouth rehabilitation to restore his vertical dimension of occlusion (VDO). The treatment plan involves crowns on all teeth. What is the most reliable method for determining the new VDO?
True or False: When performing in-office vital tooth whitening with a high concentration of hydrogen peroxide, using a light or laser activation source has been consistently proven in literature to significantly enhance the final whitening outcome and longevity compared to chemical activation alone.
A diagnostic wax-up for an anterior veneer case calls for lengthening the incisal edges by 1.5mm. Which procedures are essential to clinically verify the esthetic and functional acceptability of this proposed change before proceeding with tooth preparation? (Select THREE)
A 30-year-old female patient presents for a consultation. She is unhappy with her 'gummy smile' and the short appearance of her maxillary anterior teeth. Clinical examination reveals 4-5mm of gingival display upon full smile, probing depths of 2-3mm, and sound tooth structure. Radiographs confirm that the cementoenamel junction (CEJ) is located significantly apical to the free gingival margin, and bone levels are adequate. Based on these findings of altered passive eruption, what is the most appropriate initial treatment to create a more harmonious smile architecture?
During try-in of a monolithic zirconia crown on tooth #14, the dentist notes a slight rocking motion when pressure is applied to the mesiobuccal and distolingual cusps. All other aspects of the fit, including margins and contacts, appear acceptable. What is the most likely cause of this issue?
According to the principle of Golden Proportion in smile design, if the perceived width of the maxillary central incisor is 1.618 units, what should the perceived width of the lateral incisor be when viewed from the front?
A clinician is preparing to bond an all-ceramic restoration. The protocol calls for using a universal adhesive in the self-etch mode on dentin, followed by selective etching of the enamel margins with phosphoric acid. What is the primary advantage of this selective-etch technique?
The ideal incisal embrasures between the maxillary anterior teeth should follow which pattern?