Obolopteryx truncoangulata n. sp., Barrientos-Lozano & Rocha-Sánchez, and a field collected conspecific gynandromorph are described, both from the northern Mexico's Highland. O. truncoangulata n. sp., may be separated from congeneric O. brevihastata based on morphological characters. The male's pronotum is more constricted mesally, and the tegmina are shorter. The disto-dorsal abdominal tergite...

Three new species of Monodontocerus are described from caves in southern China: M. absens sp. nov. is characterized by its cephalic chaetotaxy and the absence of chaetae from the tenaculum; M. mulunensis sp. nov. is characterized by a combination of characters including chaetotaxy, foot complex and furca; M. trigrandis sp. nov. is different from other species in the formula of dental spines and...

This case report describes the endodontic therapy on a three-rooted mandibular first molar. The initial endodontic treatment was carried out after misreading preoperative periapical radiograph. Moreover, the working length was determined only with the apex locator. So, the additional disto-lingual root left unidentified and remained untreated, failing the treatment. A thorough radiographic exam...

Saber Colher os cymptomas, seleccional-os, classificando-os hierarchicamente, como disse no anterior artigo, constitue um imprescindível factor de successo. Citarei, a propósito disto, alguns casos, colhidos em minha clinica.

OBJECTIVE To test the hypothesis that there is no difference in the effect of different continuous moderate to very heavy forces on root resorption or amount of tooth movement. MATERIALS AND METHODS In the study, 10, 25, 50 and 100 g mesial force were applied to the maxillary first molars of rat using nickel titanium closed-coil springs for 3 days, 14 days, and 28 days. The molars were extrac...

BACKGROUND Partial-mouth periodontal examination (PMPE) has been widely used in periodontal epidemiologic studies. In this study, the authors evaluate the accuracy of extent and severity estimates from PMPE protocols in a Chinese population. METHODS The study enrolled 200 individuals with periodontitis, ages 22 to 64 years. Full-mouth examination was performed to determine probing depth (PD),...

The aim of this trial was to evaluate whether a Nance or Goshgarian palatal arch was most effective for prevention of mesial drift, distal tipping, prevention of mesio-palatal rotation of the upper first permanent molars, and patient comfort and ease of removal. Patients were recruited from a district general hospital and a specialist orthodontic practice and randomly allocated to a Goshgarian ...