Research Article

[Retracted] Dosimetric Comparison between Volumetric Modulated Arc Therapy (VMAT) and Intensity-Modulated Radiotherapy (IMRT) for Dental Structures of Head and Neck Cancer Patients

Table 5

Radiation doses received by maxillary and mandibular teeth using VMAT.

NasopharynxOral cavityOropharynxLarynx

Maxillary teethMean of average35.30 ± 5.75 aA31.56 ± 12.78 abA19.45(22.44) bcA18.89 ± 8.30cA
Mean of maximum64.73 ± 6.31 aA54.57 ± 14.49 abA48.03 ± 22.81 bA33.80(15.82)cA

Mandibular teethMean of average35.84(7.55) aA54.49 ± 12.68 bB33.73(20.46) aB27.61(6.68)aB
Mean of maximum57.06 ± 8.76 aB65.46 ± 10.72bB62.36 ± 10.53bcB46.36 ± 10.36bB

Different lowercase letters in the rows represent significant differences () (one-way ANOVA or the Kruskal-Wallis test). In each row, we compared the radiation doses of maxillary and mandibular teeth of different tumor locations. Different capital letters in the columns represent significant differences () (independent-samples t-test or Mann-Whitney test). In each column, we compared the average doses (maximum dose) of the upper and lower teeth of the same tumor locations.