Authors’ contributions
A.H.
M.A. responsible for the funding and undergoing the clinical and theoretical work of the trial, collecting data, clarification, conclusions and drafting the manuscript. F.Z. responsible for patients’ randomization, providing guidance through the clinical work, revising the theoretical part and help with the conclusions and completion of the data. A.H. responsible for clinical assessment of patients, cases selection, clinical diagnosis as well as help in writing the manuscript. O.S. responsible for Biochemical assessment of salivary samples using enzyme-linked immunosorbent assay (ELISA), interpretation of results and drawing conclusions. A.A. responsible for Coenzyme Q10 mucoadhesive tablets preparation. All authors read and approved the final manuscript.