Radiographic Evaluation of Permanent Second Molar Substitution After Extraction of Permanent First Molar: Identifying Predictors for Spontaneous Space Closure.

Purpose: The purpose of this study was to investigate pre-extraction variables associated with spontaneous space closure of the perma- nent second molar (PSM) following early extraction of the permanent first molar (PFM), and test an existing prediction model for the mandibular arch as the rates of spontaneous space closure are significantly lower in the mandible compared to the maxilla.

Methods: Pre-extraction panoramic radiographs of 162 patients (138 maxillary and 168 mandibular quadrants) between five and 15 years old at the time of PFM extraction were evaluated. The prediction model was applied to the mandibular quadrants.

Effectiveness of a Preventive Recall Strategy for Children After Dental Rehabilitation with General Anesthesia.

Purpose: To test a more frequent preventive recall strategy following full-mouth dental rehabilitation (FMDR) in children with early childhood caries (ECC).

Methods: Patients were randomized into two groups: controls, who were scheduled to return at six-month intervals (6-MR); and the intervention group, who were scheduled to return at three-month intervals (3-MR and 6-MR). At baseline and at each recall, a caries risk assessment (CRA) and dental exam were completed.