Experimental: low level laser

A low-level gallium arsenide diode (Biolase, USA) at a 940 nm wavelength with 0.2 W output power and 2 J energy. The device was calibrated, and the probe was disinfected prior to every treatment.~The Masseter and Temporalis muscles will be bilaterally assessed with constant pressure to define tenderness.~LLLT applied perpendicular to each tender point of the intended muscles for 10 seconds with an energy density of 2.5 J/cm2.~Sessions are scheduled 3 days a week (every other day)

Experimental: Occlusive splint therapy

A soft occlusal splint (vacuum-formed ) made from a 2-mm-thick elastic rubber sheets will be used.~Splints were individually designed ( in the out patient clinic of the college of dentistry) for the upper arch of each patient. An alginate imprint of the maxillary arch will be taken to fabricate a master cast of the maxilla.~A vacuum pressure device was utilized for molding the rubber sheets (13 x 13 cm /2-mm thickness).~Sheets were removed after it has been appropriately adjusted to the mold in the vacuum former. Edges will be properly trimmed, and the palate part is detached to obtain the end shape.~Participants are instructed to wear the splint at all times except during mealtimes and oral hygiene.

No_intervention: Control

This group will be a wait list group recieving no intervention except for the regular analgesic prescribed by the reffering dentist