Table 4 Heart rate and oxygen saturation observed at different times of the dental treatment session while under sedation

 Reception (baseline)

96.4 (17.7)

94.3 (17.2)

0.77^a

 Administration of anaesthesia

122.7 (28.6)

107.1 (22.3)

0.13^a

 Use of high speed^c

125.2 (32.9)

124.6 (26.9)

0.96^a

 End of session

133.2 (25.9)

123.9 (24.7)

0.35^a

 Reception (baseline)

97.5 (95.3–98.0)

97.5 (96.3–98.0)

0.89^b

 Administration of anaesthesia

99.0 (98.0–100)

100.0 (99.0–100)

0.12^b

 Use of high speed^c

99.5 (97.3–100)

99.0 (98.0–100)

0.89^b

 End of session

100.0 (98.0–100)

99.0 (97.5–100)

0.42^b