## Materials & Methods
### Clinical and Laboratory Procedures for Reference Data (Pre- and Post-Treatment)  
The overall study workflow is presented in Figure 1. All participants had indications of a single posterior crown restoration supported by the tooth or implant. All clinical procedures were performed by a professional dentist (Y.-C.L.) with a prosthodontics specialty. For a tooth-supported single crown, after a preliminary clinical examination, the posterior tooth preparation was made. The ideal dimensions for an occlusal reduction and an axial reduction were tried. The subgingival margin of the preparation was avoided. After preparation, the quadrant scan image of the maxilla and mandible was obtained using an IOS (Trios 3; 3 Shape A/S, Copenhagen, Denmark) according to the manufacturer's instructions (Figure 2A). The static interocclusal registration was recorded using the buccal bite registration method. For an implant-supported single crown, the acceptable osseointegration was verified before the digital impression. To acquire a digital impression, an emergence profile scan, a scan of the scan body (H-Scan body; Dio Implant Co., Busan, Korea), and an antagonist scan were performed. The interocclusal registration was recorded in the same manner as that for the tooth-supported restoration. A customized implant abut  
Figure 1: Workflow that was used to compare the amount of occlusal error between the experimental groups. CAD, computer-aided design; NA, no adjustment group; PSM, Patient Specific Motion group; SA, semi-adjustable articulator group; RMS, root mean square; AVG, average; in Tol, inside the tolerance level. All laboratory procedures, including the crown design and fabrication, were performed by an experienced professional dental laboratory technician (D.H.K.). Intraoral scanning data were loaded in CAD software (3 Shape Dental System; 3 Shape A/S, Copenhagen, Denmark). A virtual design procedure was performed using the recommended flow in CAD software. The crown contour and occlusal morphology were adjusted to achieve anatomic harmony with the adjacent and occluding teeth. Anatomic properties, such as the occlusal fit, occlusal cusp, central groove, marginal ridge, and proximal contact, were adjusted. By setting the parameters in the contacts and smoothening tab, the occlusal contact was refined. Using single-tooth tools, such as the wax knife tool, occlusal contacts were additionally adjusted and controlled by referring to the antagonist and distance map in the static occlusion state. The finished occlusal design data were considered as the reference CAD data (PRE) (Figure 2B). Finally, a zirconia crown was fabricated using a five-axis milling machine, and post-processing, such as sintering of the crown, was performed. During the crown delivery, all crown restorations showed clinically acceptable margin adaptations when checked using a dental explorer tip. Interproximal contact was verified via double-checking. First, the interproximal contact was assessed with dental floss. Second, the patient's identical sensation with/without a crown was verified. The tight contact was adjusted using zirconia polishing burs (Eve Diacera HP 321 kit, EVE Ernst Vetter GmbH, Keltern, Germany), whereas the loose contact was repaired by adding porcelain. The occlusal contact was evaluated using two types of articulating paper (Arti-Check Articulating Paper 40 \(\upmu\)m, Dr. Jean Bausch GmbH & Co. KG, Koln, Germany; Hanel Shimstock foil (8 \(\upmu\)m), Coltene, OH, USA) [29]. Any occlusal interferences in the static and dynamic occlusion were eliminated (Figure 2C). To avoid overcorrection, posterior disocclusion was achieved by referring to the standard amount of disocclusion by [PERSON] [30]. After the occlusal adjustment was completed, the clinician evaluated the occlusion and confirmed that there was no patient discomfort. The adjusted crown was temporarily cemented (Temp-bond; Kerr Dental,  
Figure 2: Clinical procedure for the reference data (PRE and POST).