The Dutch Version of the Orthognathic Quality of Life Questionnaire (OQLQ-NL): Validation for Cleft Patients.

Objective: The aim of this study is to validate the Dutch version of the Orthognathic Quality of Life Questionnaire (OQLQ-NL) for cleft patients who received orthognathic surgery.

Methods: To compare the OQLQ-NL with the CLEFT-Q, we used a convenience sample of thirty-two cleft patients. Using the Cronbach's alpha coefficient for multiple item scales, internal reliabilities of the OQLQ-NL were evaluated.

Subjective alveolar nerve function after bilateral sagittal split osteotomy or distraction osteogenesis of mandible.

Purpose: The present retrospective cohort study compared the subjective inferior alveolar nerve (IAN) function after distraction osteogenesis (DOG) and bilateral sagittal split osteotomy (BSSO) in mandibular advancement surgery.

Materials And Methods: Treatment consisted of correction of a retrognathic mandible using DOG (30 patients) or BSSO (35 patients). Subjective IAN function was recorded using a questionnaire 1 year after surgery.

Reconstruction of an atrophic maxilla: comparison of two methods.

We have evaluated the survival of dental implants in extremely atrophic edentulous maxillas after autogenous bone grafting. We compared two techniques: the Le Fort I down-grafting procedure and conventional raising of the sinus floor with onlay bone grafting. Twenty-seven consecutive patients had their atrophic maxillas reconstructed, 10 of whom were treated with a Le Fort I osteotomy with down-grafting and interpositioning of bone, and 17 by raising the sinus floor and onlay grafts.

Ultrasonic root-end preparation in apical surgery: a prospective randomized study.

Objective: The purpose of this study was to evaluate the potential benefit of an ultrasonic device in apical surgery on the outcome of treatment.

Study Design: A randomized prospective design was used in a standardized treatment protocol. Patients were allocated to treatment with an ultrasonic device (P-Max Newtron) or treatment with a bur in an otherwise similar protocol.