Massachusetts General Law
Chapter 64H Tax on Retail Sales of Certain Tangible Personal Property
Section 6 Exemptions
The following abstract from the Chapter 64H Tax Law explains what is exempted from taxes for dental services
(l) Sales of medicine, insulin needles and insulin syringes on prescriptions of registered physicians and sales of insulin; sales of oxygen, blood or blood plasma; sales of artificial devices individually designed, constructed or altered solely for the use of a particular crippled person so as to become a brace, support, supplement, correction or substitute for the bodily structure including the extremities of the individual; sales of artificial limbs, artificial eyes, hearing aids and other equipment worn as a correction or substitute for any functioning portion of the body; sales of artificial teeth by a dentist and the materials used by a dentist in dental treatment; sales of eyeglasses, when especially designed or prescribed by an ophthalmologist, oculist or optometrist for the personal use of the owner or purchaser; sales of crutches and wheel chairs for the use of invalids and crippled persons; and sales of baby oil; and the rental, sales and repairs of kidney dialysis machines, enteral and parenteral feedings, and feeding devices, suction machines, physician-prescribed, medically necessary breast pumps, oxygen concentrators, oxygen regulators, oxygen humidifiers, oxygen masks, oxygen cannulas, ultrasonic nebulizers, life sustaining resuscitators, incubators, heart pacemakers, canes, all types of hospital beds for home use, tripod quad canes, breast prosthesis, alternating pressure pad units, and patient lifts, when prescribed by a physician.