Objective: Ectopic teeth are teeth that are located deep in the jawbone or in other areas outside the alveolar bone, such as nasal cavity, chin, mandibular bone, palate, orbital cavity, and maxillary sinus. The presence of teeth in the maxillary sinus can cause an inflammatory reaction in the sinus and cause local sinonasal symptoms such as nasal obstruction, facial fullness, headache, hyposmia, and recurrent chronic sinusitis, due to obstruction of the sinus ostium and it can also develop into cysts. Replantation of bone fragments after tooth extraction using the Bone Lid technique can maintain sinus volume. The aim of this paper is to report the extraction of ectopic teeth in the maxillary sinus by using Bone Lid technique. Methods: A 9-year-old girl was referred from ENT clinic with complaints of pain in the right cheek and sniffles which were diagnosed as maxillary sinusitis. Radiographic examination showed that the canine tooth was located on the right maxillary sinus. The ectopic canine tooth was removed with a modified bone lid technique. Results: The panoramic radiograph and Waters’ projection radiograph postoperatively showed there were no ectopic teeth in the sinus and no volumetric changes of maxillary sinus cavity. In the clinical evaluation of 1 month postoperatively, there were no complaints of pain and sniffles. Conclusion: The use of the Bone Lid technique is beneficial because it maintains sinus volume, thus it does not disturb the function of the maxillary sinus.

Background: Autotransplantation is a surgical movement to reposition teeth that have been erupted, partially erupted or not yet erupted from one place to another in the same individual, either on post-extraction sockets or artificial sockets made by surgery. Dental folicle from impacted teeth may develope dentigerous cysts that will result in destruction of the jaw bone. There are many factors that influence the success of autotransplantation, one of which is adequate bone support.The purpose of this poster is to present the successful autotransplantation treatment of impacted right maxillary incisor teeth associated with dentigerous cyst and bone support replacement after cyst enucleation using a carbonate apatite collagen graft, GAMACHA®, at RSUP Dr. Sardjito. Case management: A 9-year-old girl, referred to the Oral and Maxillofacial Surgery Department of RSUP Dr. Sardjito with the complaint of right deciduous maxillary incisor persistence. Radiological examination showing persistent of 51 and 52 radices and impaction of teeth 11 and 12 in a horizontal position above radix 53. Also visible radiolucent image with a firm limit around the crown of 11 that supports the image of cyst. This patient performed cyst enucleation under general anesthesia, removal of impacted 11 and 21, followed by an artificial socket drilling at the alveolar bone that could support all aspects of the root wall although only on the apical part of the tooth root for teeth 11 and 12 placement. Autotransplantation of teeth11 and 12 followed by the application of GAMACHA® and wire fixation, strengthen with acrylic splint. Conclusion: Two years follow up after surgery, patient have no complaints either from aesthetic or functional and the result of clinical and radiological examination did not found existence of any pathological abnormalities around teeth 11 and 12.

In the last two decades, the use of osteosynthesis miniplate has been growing to aid the healing process and reconstruction of fractured mandibular bone. In principle, the plate is used to provide stable fixation of the fractured bone tissue during the healing process and reconstruction. Based on earlier studies, it is noted that arrangements and geometry of the osteosynthesis miniplate played a critical role in determining the stability of the fractured mandibular bone, as well as the miniplate. In this research, a simulation with finite element method (FEM) was carried out to investigate the influence of the number of holes in an osteosynthesis miniplate on the stability of fractured mandibular bone and the corresponding miniplate after the implantation. For this purpose, a set of osteosynthesis miniplate with three different configurations was taken for simulation using a three-dimensional (3D) model of mandibular bone generated from the patient through computed tomography (CT). The result of the simulation showed that all the miniplates with three configurations tested were stable enough to prevent movement of fractured mandibular bone. Moreover, fixation with a pair of miniplates having four screw holes demonstrated the desired result; as indicated by the lowest value of displacement, pressure on the bone surface and pressure on the miniplate.

aBstraKReseksi rahang merupakan perawatan pilihan yang utama pada ameloblastoma mandibula dengan kerusakan tulang yang luas.Tindakan reseksi pada mandibula akan menyebabkan gangguan stabilitas pada mandibula akibat adanya bagian tulang yang hilang. Ketidakstabilan mandibula menimbulkan gangguan fungsi estetis, fisiologis, dan psikologis. Untuk mengembalikan stabilitas mandibula diperlukan pemasangan pelat rekonstruksi mandibula pada tulang mandibula yang tersisa dengan menggunakan sekrup. Akan tetapi tidak jarang didapatkan adanya komplikasi plate exposure setelah tindakan rekonstruksi mandibula, karena adaptasi pelat terhadap tulang mandibula kurang akurat. Model stereolitografi 3 dimensi dapat membantu memberikan penilaian terhadap defek tulang yang paling baik, merencanakan pembuatan lengkung pelat pre-operatif lebih mudah dan lebih akurat dan mempercepat waktu operasi Tujuan: untuk mengevaluasi komplikasi plate exposure pasca-reseksi mandibula setelah rekonstruksi pelat titanium di RSUP Dr. Sardjito. Laporan Kasus: Dilaporkan sebuah kasus rekonstruksi mandibula pasca reseksi ameloblastoma dengan pelat titanium yang dilakukan di RSUP Dr. Sardjito dan mengalami komplikasi plate exposure intra oral dan fistula oro kutan pada JURNAL TEKNOSAINS