Polymer and ceramic materials: Evaluated and compared their bond to metal frameworks.

Meta-analyses of clinical studies: Systemically reviewed and analyzed the results of clinical studies pertaining to controversial issues in restorative dentistry, such as: Implant abutment screw loosening, complications of complete implant fixed prostheses, the influence of age on fixed prostheses survival, the influence of material selection on ceramic veneer complication rates.

Evidence-based therapy and problem-based learning: Reviewed the relevant literature and recommended applications in clinical decision-making and education.

Cooperation between dentists and dental technicians: Surveyed dental laboratories regarding cooperation problems with dentists.

Dental arch stability: Investigated the effect of tooth loss on the remaining teeth position stability.

Dental Implant corrosion:  Investigated the effect of abutment connection geometry on corrosion products

Antimicrobial coatings for removable prostheses:  Investigated the effect of polymer coatings of removable prostheses on surface properties and microbial colonization