Table 2.

Percentage of patients who received RT in various dental areas in bilateral neck.

	Exceeding 40 Gy D₂% Dmean dose range (Gy)
Primary (n)	Maxillary incisors, canines	Maxillary right premolars, molars	Maxillary left premolars, molars	Mandibular incisors, canines	Mandibular right premolars, molars	Mandibular left premolars, molars
Oropharynx (27)	44% 2.7–71.4	67% 4.3–70.3	70% 7.8–71.8	67% 29.2–71.9	78% 23.8–70.2	89% 25.3–73.3
Oral cavity (20)	65% 12.3–68.7	59% 11.3–70.8	76%a 16.2–70.2	90% 28.0–69.2	94%b 11.1–69.7	100% 43.7–68.9
Larynx (8)	0% 1.1–38.7	12.5% 1.8–49.4	0% 1.7–34.3	12.5% 20.0–44.0	25% 20.6–50.5	37.5% 24.9–49.2
Hypopharynx (6)	0% 0.2–31.7	0% 0.3–33.2	0% 0.3–28.1	17% 0.5–45.2	50% 0.8–60.3	33% 0.9–63.8
Nasopharynx (4)	50% 23.0–53.9	50% 27.0–58.9	100% 45.3–56.1	0% 0.5–36.7	50% 0.5–50.1	50% 0.5–42.2
Nasal cavities (6)	100% 50.6–72.9	67% 3.7–67.8	67% 5.9–72.5	0% 0.3–29.1	17% 0.3–42.5	33% 0.2–53.55

^aThree patients could not be delineated.

^bTwo patients could not be delineated.