25617

Amoebic dysentery stool is typically dark red and acidic, while bacillary dysentery stool is bright red and alkaline.

31514

The recommended force for condensing a composite resin using a 0.5 mm diameter condenser nib is 3.75 pounds. This force is considered optimal and is well within the physiologic limits of the tooth.

90755

Among the given choices, the advantage of a sagittal split osteotomy over a transoral vertical subcondylar osteotomy is that it allows for greater mandibular movement. The sagittal split osteotomy is a surgical technique used in orthognathic surgery to reposition the mandible in cases of severe skeletal discrepancies. It involves splitting the mandible along the midline and moving the two halves apart, which can provide significant advancement or setback of the lower jaw. This technique may be used to correct both mandibular prognathism and retrognathism, making it a versatile option in orthognathic surgery. Additionally, it is associated with fewer complications compared to the transoral vertical subcondylar osteotomy, which involves cutting through the medullary bone of the condyle and can pose a higher risk of injury to the facial nerve and other vital structures. However, it's important to note that the choice of surgical approach is determined by the specific case and the individual patient's needs.

83743

Orange peel and ground glass radiographic appearance is observed in fibrous dysplasia.

71750

Lichenoid reactions are mainly due to the intake of certain drugs.

56869

98329

Although overcrowding can contribute to impaction, it is not a direct cause. The most common causes of impaction are insufficient space in the dental arch and abnormal angulation of the tooth due to the presence of other teeth or abnormal growth patterns. Genetic factors also play a significant role as the size and shape of the jaw are inherited traits.

79402

Pitting of a direct gold filling is primarily caused by improper stepping of the condenser, which leads to inadequate condensation and a lack of homogeneity in the gold layers. This results in voids and porosities that manifest as pitting on the surface.

55011

Mefloquine is effective against malaria because it inhibits the DNA replication in the parasites' asexual erythrocytic stages, thus preventing their proliferation.

59460

Weakening of support to adjacent teeth is a contraindication to resection of crestal bone.