Kedokteran Gigi

Background This study compared two porcine-derived grafts Permacol (Tissue Science Laboratory, Covington, GA, USA) and Surgisis (Cook Surgical, Bloomington, IN, USA) in terms of strength of incorporation (SOI), incorporation of host tissue, and adhesion formation using a rat model. Methods A prospective randomized study using 48 Sprague–Dawley rats. A standardized 1.5 × 5 cm fascial defect was created and repaired with either Permacol or Surgisis grafts. The rats were then sacrificed at 3, 14, 28, or 60 days. The specimens were examined for SOI, neovascularization, collagen deposition, collagen organization, and adhesion formation. Results Surgisis had significantly greater SOI than Permacol at 28 (0.115 vs. 0.0754 Mpa) and 60 days (0.131 vs. 0.635 Mpa). Surgisis had significantly more collagen deposition and neovascularization than Permacol at 60 days. The area of adhesions was not significantly different between Surgisis and Permacol. Conclusion Surgisis is superior to Permacol in terms of SOI and tissue ingrowth at 60 days. Furthermore, Surgisis strengthened over time whereas Permacol decreased in strength.

In this work we utilize the Finite-Difference Time Domain (FDTD) Method coupled to a full band, particle-based simulator to solve for the total Lorentz force. Replacing a traditional Poisson solver with a more robust electromagnetics (EM) solver allows us to accurately account for radiated losses and provides a useful tool for investigating the near and far-field radiation patterns inherent in modern devices.

Estetik pada gigi menjadi bagian dari kebutuhan masyarakat untuk mendukung penampilan dan meningkatkan kepercayaan diri dengan memiliki susunan gigi yang rapih dan senyum yang lebih estetis. Gigi memerlukan restorasi mahkota pasak karena beberapa faktor penyebab di antaranya kerusakan mahkota yang sudah sangat parah. Pada laporan kasus ini akan dibahas tentang perawatan restorasi gigi indirect dengan mahkota pasak pada gigi anterior pasca trauma yang mengakibatkan fraktur gigi dengan keterlibatan pulpa. Dengan cara ini dihasilkan suatu restorasi mahkota pasak yang akurat, retentif dan nilai estetik yang baik.