Clinical application of ultra-thin veneers for anterior esthetic restorations / 中华医学美学美容杂志

ABSTRACT

Objective To investigate the esthetic effect of anterior ultra-thin veneers which were fabricated from heat pressed IPS e.max press ingots of high translucency.Methods The whole 62 anterior teeth of 12 patients,who wanted to receive aesthetic restorative treatment,were invloved in the study.Grooves with 0.5 mm depth were marked at the center of the labial face by the use of spherical diamond burs with 1 mm in diameter.At the cervix of the teeth,the design of 0.3 mm shallow concave shoulder was adopted.IPS e.max HT ingots of different color were chosen to be hotpressed; the straining technique was used on the marginal ridge and incisor ridge of the ultra thin veneers after they had been carefully trimmed.Subsequently,the restorations were bonded with Variolink Veneer resin cement.After a short-term follow-up for 3 years,a modified USPHS criterion was used to evaluate the esthetic effect.Results The thickness of the ultra-thin veneers fabricated by heat pressing was 0.3-0.5 mm,marginal integrity of the veneers was perfect and fitted well with the marginal finishing line of the abutment,and then the translucency of veneers was high.There was no edge discoloring after the veneers were used for 6 months to 3 years,and they might produce an excellent chameleon effect by mixing the color of adjacent teeth and gums,and appeared a surface morphology of natural enamel after carefully carved.In the short-term clinical observation,none of the 62 veneers fractured or fell off; there was no case of dentin hypersensitivity.Conclusions Ultra-thin veneers fabricated from IPS e.max Press ingots have the following advantages,a simple operating procedure,high mechanical strength,and satisfactory esthetic effect.