BACKGROUND. Peripheral (extraosseous) odontogenic tumors are rare. CASE REPORT. This report describes a case which illustrates the clinical and histopathological features of a lesion in an 8-year-old, healthy Caucasian girl that on purely morphological grounds would seem to be an ameloblastic fibro-odontoma, but may represent a case of a peripheral developing complex odontoma. CONCLUSION. Conservative surgical enucleation of the lesion was followed by unbcomplicated healing and no recurrence was seen.
Background
The sedative effect of nitrous oxide–oxygen (N2O/O2) inhalation is relatively well established. Less in known about its analgesic effect.
Aim
To determine the analgesic effect of N2O/O2 inhalation on pulp sensitivity and jaw muscle pressure pain threshold in children.
Design
A placebo‐controlled, double‐blind, crossover trial with random allocation to two sequences: atmospheric air at the first session and N2O/O2 at the second; or N2O/O2 at the first session and atmospheric air at the second. Measurements included reaction time, pulp pain sensitivity, jaw muscle pressure pain thresholds and a VAS score of overall discomfort from the pain tests.
Results
Fifty‐six children (12–15 years) completed the study. N2O/O2 inhalation increased reaction time (P < 0.001). Pulp pain sensitivity was reduced during N2O/O2 inhalation (P < 0.001), but no effect was found after adjustment for the increased reaction time. Pressure pain threshold on the jaw muscle was also reduced during N2O/O2 inhalation (P < 0.001), also after adjustment for reaction time (P < 0.005). An effect was still found 10 min after the mask had been removed (P = 0.03). No effect on VAS scores of discomfort from the tests could be found.
Conclusions
No analgesic effect of N2O/O2 inhalation on pulp pain sensitivity was found, whereas an increased pressure pain threshold of jaw muscles was found.
The need of dentoalveolar surgery in children and adolescents is relatively low, but includes a wide range of interventions. An organizational system, where dentists can refer to colleagues who have developed special competencies in this field, results in most of these surgical patients being referred and treated internally.
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