Frequency of the odontogenic maxillary sinusitis extended to the anterior ethmoid sinus and response to surgical treatment.

Objectives: Odontogenic sinusitis usually affects the maxillary sinus but may extend to the anterior ethmoid sinuses. The purpose of this study is to determine the percentage of odontogenic maxillary sinusitis extended to the anterior ethmoid sinuses and determine also the surgical resolution differences between odontogenic maxillary sinusitis and odontogenic maxillary associated to anterior ethmoidal sinusitis.

Study Design: This is a retrospective cohort study performed on 55 patients diagnosed of odontogenic sinusitis and treated surgically by functional endoscopic sinus surgery.

Development of the stapedius muscle canal and its possible clinical consequences.

Objective: To study the development of the stapedius muscle canal in human embryos and foetuses.

Materials And Methods: 46 temporal bones with ages between 9mm and new-borns were studied. The preparations were dyed using Martins' trichrome technique.

Contribution to morphological knowledge of the development of the human incudo-mallear joint.

At the time of birth, the incudo-mallear joint is completely developed. OBJECTIVE. To study the development of the incudo-mallear joint in human embryos and fetuses.