Evaluation of Ceramic Dental Crown Clinical Performance After Conventional Hydrofluoric Acid Etching or Gaseous Plasma Pretreatment

Brief Summary

In this randomized, controlled, double-blind clinical trial, we will follow adult participants who receive partial or full dental crowns made of lithium disilicate ceramic (LDC). Before the crowns are permanently attached to teeth, those in the control group will be etched with hydrofluoric acid (HF) according to the standard laboratory protocol, while those in the intervention group will undergo an innovative surface treatment with atmospheric-pressure nonthermal plasma (APP). The goal of this study is to determine whether the innovative APP pretreatment of LDC crowns can result in outcomes comparable to or better than those achieved with the standard HF treatment, including: * oral health-related quality of life as reported by the participants; and * the clinical success and survival of LDC crowns. Participants will be asked to attend scheduled follow-up visits 1 week and 1, 3, 6, and 12 months after the crowns are cemented. At each visit: * a researcher will examine the crowns and surrounding teeth and tissues for any biological or technical complications; and * participants will complete a questionnaire to assess their oral health-related quality of life.