3D analysis of the temporomandibular joint and occlusal relationships based on computer virtual simulation

One-Stage Virtual Plan of a Complex Orthodontic/Prosthetic Dental Rehabilitation

“…Then, the analysis of TMJs evidenced an asymmetry of the intra-articular space width of the right and left joints. There was a slight narrowing of the posterior third of the joint space on the right, while this same indicator was near the lower limit of the normal range on the left side [6,11,16,17], as represented in Figure 3.…”

“…the position of the condyles, for example, by measuring intra-articular space width (height) using CBCT images [11,12]. This software can also match intraoral scans with CBCT images, thus allowing virtual repositioning of the mandibular condyles based on the width of the intraarticular spaces.…”

“…Then, the analysis of TMJs evidenced an asymmetry of the intra-articular space width of the right and left joints. There was a slight narrowing of the posterior third of the joint space on the right, while this same indicator was near the lower limit of the normal range on the left side[6,11,16,17], as represented in Figure3.Intra-oral frontal and lateral views evidence diastemas between the canines and the first premolars and a slight crowding of the lower frontal teeth (Figure4).The same software was used to perform a preliminary one-stage virtual planning to plan the whole treatment before beginning.It included the following steps: (a) the determination of occlusal vertical dimension through the analysis of lower jaw repositioning (LJ position); (b) the orthodontic correction of the position of the teeth to close diastemas and solve crowding; (c) the revision of the consistency of composite restorations before prosthetics; and (d) the manufacturing and fixation of ceramic restorations (veneers, inlays/onlays, and crowns).…”

“…Therefore, although it may be considered a valid alternative to clinical repositioning, it may not be the best choice, as it still depends on prior clinical assessment. 3D software was recently introduced to assess and modify the position of the condyles, for example, by measuring intra-articular space widths (height) using CBCT images [11,12]. This software can also match intraoral scans with CBCT images, thus allowing virtual repositioning of the mandibular condyles based on the width of the intraarticular spaces.…”

Full-Digital Workflow for TMDs Management: A Case Series

“…In her medical history, the patient reported that she was aware of suffering for years from awake bruxism, which manifested itself above all during moments of concentration and intellectual work, associated with headache in the area of the temples, with pain in the masseter muscles and, occasionally, with bilateral swelling of the temple areas. The diagnosis was, therefore, myofascial pain of the masseter muscles with associated headache, right and left disc displacement without reduction, and a slightly reduced opening path [ 11 , 12 ]. Intraoral clinical examination evidenced alteration of the occlusal plane, with numerous wear facets and completely abraded posterior teeth with uncovering of the dentin ( Figure 2 ).…”