S-index periodicity detection based on multiple random spectral observations.

The solar magnetic activity cycle has a profound impact on our lives, yet its underlying causes remain elusive. While similar cycles have been observed in other stars, these results are scarce due to the significant challenge posed by the length of time required for observation. Continuous observation over an extended period is a luxury, making it difficult to gather large samples.

Vertical dimension of occlusion related to mandibular movement during swallowing.

Background: Increasing the vertical dimension of occlusion (VDO) is a common procedure in complicated prosthodontic treatment. The swallowing technique had been verified as a functional method to determine the VDO. The purpose of this study was to investigate the association between increasing VDO and mandibular movement during swallowing.

Retrospective comparison of posterior fixed dental prostheses supported by two different titanium abutments on tissue level implants.

Statement Of Problem: Clinical studies comparing compatible computer-aided design and computer-aided manufacturing (CAD-CAM) titanium abutments (CAs) and original prefabricated 1-piece titanium abutments (PAs) for posterior fixed dental prostheses (FDPs) on Straumann Tissue Level (STL) implants are sparse.

Purpose: The purpose of this retrospective clinical study was to compare the performance of posterior FDPs supported by CAs and PAs on STL implants after a mean observation period of 7.2 years.

Clinical evaluation of two-piece zirconia abutments with bonded titanium inserts for implant-supported restorations.

Statement Of Problem: Information about the long-term evaluation of 2-piece zirconia abutments (TPZAs) with bonded titanium inserts for implant-supported restorations is sparse.

Purpose: The purpose of this clinical study was to evaluate the clinical outcome of TPZAs with bonded titanium inserts for implant-supported restorations.

Material And Methods: This study retrospectively evaluated the records of patients who received implant restorations supported by TPZAs with bonded titanium inserts.

The association of variables of fibular reconstructed mandible and bite force in oral cancer patients with dental implant rehabilitation.

Purpose: The aim of this study was to investigate how the physical variables of fibular reconstructed mandibles with dental implants affects the relative bite force in oral cancer patients.

Materials And Methods: Over 7 years of follow-up, 13 oral cancer patients were enrolled who included 51 successful implants in the fibular flap. The tactile sensor analyzer evaluated the bite force.

Effect of mouth-opening levels on sound field gain in the ear canal.

The human external auditory canal can become deformed when the mandible moves, and this changes the sound field in the external auditory canal. This study measured the sound field gain in the external auditory canal while varying mouth-opening in three levels. The mandible was fixed at the 1/3, the 2/3, and the maximal mouth-opening levels.

Compatible CAD-CAM titanium abutments for posterior single-implant tooth replacement: A retrospective case series.

Statement Of Problem: In addition to the original abutments provided by implant companies, compatible computer-aided design and computer-aided manufacturing (CAD-CAM) abutments are also available from different manufacturers. However, the combination of abutments and implant systems from different manufacturers may lead to mechanical problems between components. Little has been reported on the clinical performance of this treatment option.

The Impact of Oral Hygiene Maintenance on the Association Between Periodontitis and Osteoporosis: A Nationwide Population-Based Cross Sectional Study.

Both periodontitis and osteoporosis have similar sign of bone resorption in nature. However, the relationship of the severity between these 2 bone-loss diseases is still uncertain.The aim of this study was to investigate the association between the severity of osteoporosis and periodontitis regarding the impact of oral hygiene maintenance.

Impact of bisphosphonate-related osteonecrosis of the jaw on osteoporotic patients after dental extraction: a population-based cohort study.

Background And Aims: Little is currently known about the risk of developing bisphosphonate-related osteonecrosis of the jaw (BRONJ). This study sought to determine the incidence of BRONJ in osteoporotic patients. We also sought to identify the nature and types of risk factors of osteonecrosis of jaw (ONJ) related to the use of oral bisphosphonates (BPs).

Using the T-scan III system to analyze occlusal function in mandibular reconstruction patients: a pilot study.

Background: This study was designed to analyze the post-rehabilitation occlusal function of subjects treated with complex mandibular resection and subsequently rehabilitated with fibula osteoseptocutaneous flaps, dental implants, and fixed prostheses utilizing the T-scan system.

Methods: Ten mandibular complex resection cases that adopted fibula osteoseptocutaneous flaps, dental implants, and fixed prostheses to reconstruct occlusal function were analyzed. The mandibular reconstructions were divided into three groups based on size: full mandibular reconstructions, mandibular reconstructions larger than half of the arch, and mandibular reconstructions smaller than half of the arch.

Outcome of osseointegrated dental implants in double-barrel and vertically distracted fibula osteoseptocutaneous free flaps for segmental mandibular defect reconstruction.

Background: Osseointegrated dental implants in double-barrel, or single-barrel and then vertically distracted, fibula osteoseptocutaneous free flaps can achieve segmental mandibular reconstruction, dental rehabilitation, and premorbid facial height. However, it remains unknown which configuration provides better osseointegration outcomes.

Methods: Between 2003 and 2009, all patients who underwent segmental mandibular defect reconstruction using vertical distraction osteogenesis of single-barrel fibula with secondary osseointegration (group A, 10 patients and 35 osseointegrated dental implants) or double-barrel fibula with primary osseointegration (group B, 13 patients and 36 osseointegrated dental implants) were evaluated prospectively for crown-implant ratios, mesial/distal marginal bone losses, and complications.

Aesthetic and functional mandibular reconstruction with immediate dental implants in a free fibular flap and a low-profile reconstruction plate: five-year follow-up.

Background: Aesthetic and functional mandibular reconstruction can be achieved in 1-stage. It involves simultaneous dental implant placement in a free vascularized fibula transfer with a low-profile reconstruction plate. The aim of this study was to assess the postoperative aesthetic profile and oral functional result.

Dental implant outcome after primary implantation into double-barreled fibula osteoseptocutaneous free flap-reconstructed mandible.

Background: Functional and aesthetic mandibular reconstruction can be achieved in a single operation by means of a double-barreled fibula osteoseptocutaneous free flap with dental implants loaded simultaneously into the upper barrel. The aim of this study was to evaluate the quality and result of such reconstruction.

Methods: From 2005 to 2007, 10 patients underwent segmental mandibular defect reconstructions with double-barreled fibula osteoseptocutaneous flaps and simultaneous dental implantations.

Esthetic restoration of infra-occluded retained primary mandibular incisors with all-ceramic crowns in adult dentition.

The prevalence of hypodontia is reported to be between 1.5% to 10% in the permanent dentition. In the anterior teeth, maxillary lateral incisors and mandibular central incisors are the most frequently involved teeth.

Developing an optimal emergence profile of the definitive restoration with a modified impression cap technique for ITI solid abutment.

There appears to be no convenient method for fabricating an optimal emergence profile for the definitive restoration of an ITI solid abutment when the implant is installed subgingivally. This article describes an efficient technique to solve this problem and reviews its advantages and disadvantages.