Related Experiment Video
Updated: Jun 18, 2026
Establishment of a Murine Pulp Exposure Model with a Novel Mouth-Gag for Pulpitis Research
Published on: October 27, 2023
Long term histological response of hemisectioned exposed primary pulps. An in vivo study
R Valencia1, R Espinosa, M A Torres
1Pediatic Dentistry and Orthodontics, Universidad Tecnológica de México, México. rvel@data.net.mx
Unlabelled:
THE AIM of this study was to analyze the pulp behavior 17 hemisectioned primary second mandibular molars, exposed into the oral environment. The mesial crown and root portions were extracted after 8 months and analyzed histologically.
Results:
The cardinal signs such as pain, sensitivity and necrosis were not found in any of these teeth with the exception of one case which had a previous restoration. The formation of pulp polyps, pulp calcifications and pulp obliteration were seen as a normal physio-pathological response.
Conclusions:
Exposed pulps, reacted forming pulp polyps and in a similar fashion to exfoliating primary teeth but in an accelerated manner.
