The patient, a 23-year-old female, presented to the clinic with a chief complaint of not being able to bite with her anterior teeth. She presented with open bite and plexus of the anterior teeth and missing 7 6 . The treatment plan was to improve the open bite and crowding by extracting 4 and 5 and performing orthodontic treatment with multi-bracket appliances. 5 was planned to be extracted and autografted into the ⁶ site. After the multi-bracket appliances were attached and fitted, 5 was transplanted into the ⁶ defect site. After confirming the good progress of the grafted tooth, 4 was removed and orthodontic treatment was proceeded. The dynamic treatment period was 2 years and 1 month, and a good occlusion was achieved. Currently, the patient is 2 years and 5 months into the retention period. The occlusion and the condition of the grafted tooth are sound and functional 4 years and 2 months after transplantation.

In the prosthodontic treatment for missing teeth in young people, there is a risk that the anchored prostheses such as a bridge will lead to furthering defects due to the difficulty of cleaning and the mechanical point of view. In addition, minimally invasive treatment and dispersion of occlusal force are considered to be greatly involved in the longevity of the prostheses. In this case, three different chief complaints were treated with tooth transplantation and dental implant treatment combined with sinus lift with the crestal approach. For esthetic disorders in the anterior region, office bleaching and whitening were used to preserve the morphology of natural teeth, and each tooth was treated with minimally invasive treatment.

This is a case report of occlusal reconstruction for a patient with occlusal collapse due to multiple carious teeth. The 43-year-old male patient presented to the clinic with a request for comprehensive treatment. The examination revealed remaining roots in the maxillary premolars and mandibular left molars, loss of occlusal support in the left posterior region and loss of proper anterior guidance in the premolars, and the occlusal plane discrepancy. Based on the diagnostic examination, autogenous tooth grafting was performed on the left mandibular molar along with prosthetic treatment using a bridge in order to establish occlusal support. The maxillary anterior teeth showed loss of biologic width due to subgingival caries, so crown lengthening was performed after provisional restoration, and after re-evaluation of periodontal tissue and occlusal stability, the patient final prostheses were set. Despite the limited treatment options, we were able to provide a treatment with a stable prognosis. However, due to the high risk of dental caries and the status of the grafted tooth, careful follow-up care is necessary.

I.Objective: The digital information from the Digital Smile Design (DSD) was employed to determine the position of the maxillary central incisal edge for the patient with esthetic disorders in the maxillary anterior region, and the final superstructure was designed in consideration of the teeth with poor prognosis and the direction of placement of the existing implants in harmony with the facial configurations and lips. II. Methods: A 47-year-old female patient presented with the chief complaint of loss of lateral incisor. 1 was elongated and only a residual root was seen in the 2 site. The maxillary anterior teeth showed poor esthetics when smiling due to irregular morphology of the gingival margin. An implant placed 22 years earlier was present in 1 . Cone beam computed tomography (CBCT) showed X-ray transmission at the root apex of 2 and 1 , and their prognoses were judged to be poor——hence the following treatment plan: 1 to be replaced with immediately placed implant along with immediate provisionalization, and 2 to be extracted and six maxillary anterior teeth to receive crown restorations. III. Results: The DSD was employed in the examination and diagnosis, and esthetic restorations of the maxillary anterior teeth were performed in harmony with the patient's facial configurations and lips. IV. Discussion and Conclusion: The application of DSD enabled us to determine the threedimensional placement position of the implants in consideration of the morphology of the final prostheses, which were in harmony with her facial configurations and lips. We believe that the patient's understanding of and satisfaction with the treatment were improved by the visual approach.

When fabricating complete dentures for edentulous jaws, in cases where the alveolar ridge conditions differ significantly between front and back or left and right, or in cases where the mandibular position is unstable due to mandibular deviation, an appropriate occlusal recording may be difficult with the traditional biteplate. In cases with difficult occlusal recording, various innovations to improve the biteplate, such as the Gothic-arch drawing method and biteplate without occlusal contact in the anterior teeth, have been reported, yet they are not always satisfactory. The authors developed a resin occlusal jig (4-point jig) with a flat table in the maxilla and 4 occlusal contacts on the mandibular molars (2 points on each side) as an assistive device for difficult occlusal recording cases. This device can be incorporated into the conventional biteplate, can reproduce the selective pressurization state, and has a function similar to the Gothic arch drawing method. The patient wore the device and the occlusion was recorded with light tapping in a relaxed sitting position. Although only a few cases, dentures with less adjustment and chair time were obtained in most difficult cases.