Related Experiment Video
Updated: May 14, 2026

Establishment of a Murine Pulp Exposure Model with a Novel Mouth-Gag for Pulpitis Research
Published on: October 27, 2023
Prospective clinical assessment of pulp sensitivity after chin bone harvesting
Claudio F Nóia1, Rafael Ortega-Lopes, Roger W Fernandes Moreira
1Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil. claudionoia@fop.unicamp.br
Proposal:
Evaluate pulp vitality of mandibular teeth after chin bone harvesting.
Materials And Methods:
Thirty patients underwent chin bone harvesting and accompanied for 12 months, being submitted to testing for pulp vitality with Endo Ice refrigerant spray to produce a local temperature of -50 °C. The statistical analysis was executed with McNemar test with P value < 0.05.
Results:
Results show that canine teeth are most susceptible to alterations; 68.82% (181) of the teeth tested showed no loss of pulp sensitivity to cold 30 days after surgery (P < 0.05), and at the end of the study, that figure had risen to 100% (263) of all teeth included in the sample.
Conclusions:
Pulp vitality testing showed that 31.18% (82) of teeth experienced some loss of sensitivity, but by 12 months after surgery, all teeth had recuperated their pulp sensitivity to cold unaided.