The results of this study support the combination of Hib and DTPw-HBV vaccination in routine infant immunization at 2, 4 and 6 months of age with a booster at 18 months. Maximum benefit is obtained from compliance with the full course, but substantial benefit is likely to be achieved even in partially compliant patients, provided they receive at least two doses. Furthermore, these results demonstrate the tolerability of a fourth (booster) administration, where the addition of the Hib vaccine to DTPw-HBV did not lead to an increase in the overall reactogenicity.
PARRA, M.; JARA, J.; NAVARRO, P.; VÁSQUEZ, B. & OLATE, S. Computed tomography-guided bone block harvesting from the mandibular ramus. Int. J. Morphol., 36(1):362-366, 2018.
SUMMARY:The aim of this study was to ascertain the distance from the mandibular canal to the lateral, medial and upper zones of the mandibular ramus in order to identify safety margins that reduce the risk of nerve injuries in the process of removing a bone graft. A descriptive study was conducted, analyzing bilaterally 20 CBCT exams from different patients, taking measurements at 4 points in the central, lateral and medial areas of the corresponding mandibular ramus, which was located at a distance of 5 mm between each line, starting at the distal point of the second molar. Forty hemimandibles were included in this study, estimating a vertical distance for the 4 points of analysis, from between 16 and 17 mm, a distance laterally of 5 mm approximately and medially approximately from 3 to 3.9 mm; the lateral zone was significantly larger than the medial zone. It is estimated that the maximum achievement of a bone block from the area posterior to the second molar must be 13 mm deep and 3 mm laterally to minimize the risks of injuries to the inferior alveolar neurovascular bundle.
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