Hyeonjong Lee

ORCID: 0000-0002-1669-2975
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About
Contact & Profiles
Research Areas
  • Dental Implant Techniques and Outcomes
  • Dental materials and restorations
  • Dental Research and COVID-19
  • Dental Radiography and Imaging
  • Orthodontics and Dentofacial Orthopedics
  • Bone Tissue Engineering Materials
  • Orthopaedic implants and arthroplasty
  • Temporomandibular Joint Disorders
  • Periodontal Regeneration and Treatments
  • Advanced Sensor and Energy Harvesting Materials
  • Dental Trauma and Treatments
  • dental development and anomalies
  • Anatomy and Medical Technology
  • Oral and Maxillofacial Pathology
  • Quantum Chromodynamics and Particle Interactions
  • High-Energy Particle Collisions Research
  • Conducting polymers and applications
  • Particle physics theoretical and experimental studies
  • 3D Shape Modeling and Analysis
  • Obstructive Sleep Apnea Research
  • Botulinum Toxin and Related Neurological Disorders
  • Additive Manufacturing and 3D Printing Technologies
  • Oral and gingival health research
  • Dental Erosion and Treatment
  • Facial Nerve Paralysis Treatment and Research

Yonsei University
2021-2025

Yonsei University College of Dentistry
2022-2024

Sungkyunkwan University
2020-2024

Yonsei University Dental Hospital
2021-2023

Yonsei University Health System
2023

Marymount University
2022

Pusan ​​National University Dental Hospital
2019-2021

Pusan National University
2004-2021

University of Geneva
2018-2021

American Academy of Fixed Prosthodontics
2021

The mandibular advancement device (MAD) is widely used for obstructive sleep apnoea (OSA) treatment, and several studies have demonstrated its effectiveness. However, no comprehensive yet examined the biomechanical safety of MAD.The objective this study was to analyse effect different protrusion positions a MAD on teeth facial bones.The posterior restorative forces due stretched muscles were measured by pressure sensors attached experimental protrusions 10-70% maximum subject. A detailed...

10.1111/joor.12709 article EN Journal of Oral Rehabilitation 2018-08-22

Purpose This study aimed to evaluate the influence of tooth location and inlay cavity type on accuracy intraoral digital impressions.

10.2186/jpr.jpr_d_20_00169 article EN cc-by-nc Journal of Prosthodontic Research 2020-10-28

Abstract Aims To evaluate screw loosening and fracture load angular deviation of a single implant-supported prosthesis under multi-directional loading condition at three different occlusal contact points. Methods A total 40 metal crowns were cemented to external connection implants embedded vertically obliquely. The surface the crown was designed with flat surfaces, a, b, c, representing outer inner 20-degree inclination for buccal lingual cusps. deviations implant static 50N measured. And...

10.1186/s12903-023-03016-9 article EN cc-by BMC Oral Health 2023-05-29

Embedding conductive nanomaterials into elastomeric polymer matrices is one of the most promising approaches for fabricating stretchable strain sensors capable monitoring large mechanical movements or deformation through detection resistance changes. Here, hybrid fillers comprising graphene and silver nanowires (AgNWs) are incorporated extremely spandex to fabricate sensors. Composites containing only those graphene/AgNW systematically investigated by evaluating their electrical properties....

10.3390/nano10102063 article EN cc-by Nanomaterials 2020-10-19

Abstract Background Although intraoral scanning is highly reliable, little known about its accuracy in young children with limited mouth‐opening ability. Aim To determine the of scans based on degree mouth opening. Design simulate opening primary dentition, three groups ( n = 5 per group) were allocated by maximum 30, 37 and 40 mm. After dentition model was connected to a dental phantom, performed using iTero TRIOS4. The scanned files digitally evaluated. Root mean square values calculated...

10.1111/ipd.13175 article EN cc-by International Journal of Paediatric Dentistry 2024-03-13

Three-dimensional (3D) printing must go through a post-processing procedure. This study aimed to evaluate the effects of different cleaning methods on 3D printed three-unit fixed partial dentures using analysis. A denture was designed and two printers. The evaluation taken regarding method with ethanol (ETH) or isopropanol (IPA), combining ultrasonic (US) technique for following groups: group 1, ETH; 2, ETH+US; 3, IPA; 4, IPA+US; 5, US. conducted by calculating mean distance between specific...

10.4047/jap.2025.17.1.11 article EN The Journal of Advanced Prosthodontics 2025-01-01

Some resin polymers available for three-dimensional (3D) printing are slightly elastic, which may be advantageous when used full crown coverage of the primary teeth. This study was performed to evaluate mechanical properties two types 3D-printed crowns in terms strength and surface characteristics. Polymer resins temporary (TCs) flexible dentures (TFDs) were tested. Digitally designed with different thicknesses (0.4 0.6 mm) 3D-printed. Milled zirconia as control. The static dynamic fracture...

10.3390/polym15214241 article EN Polymers 2023-10-27

The design of the attachment must provide an optimum stress distribution around implant. In this study, for implant overdentures with a bar/clip or locator attachment, transmitted to in accordance change denture base length and vertical pressure was measured analyzed.Test model created epoxy resin. strain gauges made tight contact surfaces. A universal testing machine used exert on mandibular overdenture rate implants measured.Means standard deviations maximum micro-deformation rates were...

10.4047/jap.2017.9.3.143 article EN The Journal of Advanced Prosthodontics 2017-01-01

A novel retentive type of implant prosthesis that does not require the use cement or screw holes has been introduced; however, there are few reports examining biomechanical aspects this implant. This study aimed to evaluate features cementless fixation (CLF) prostheses.The test groups three variations CLF prostheses and a control group conventional cement-retained (CR) were designed three-dimensionally for finite element analysis. The divided according abutment shape relining strategy on...

10.4047/jap.2019.11.6.341 article EN The Journal of Advanced Prosthodontics 2019-01-01

Purpose: The aim of this study was to determine the stability computer-aided design and manufacturing (CAD/CAM) prefabricated abutment by measuring removal torque before after cyclic loading. Materials Methods: Three types fixture 2 abutments were used. Removable measured loading for 5000 cycles between 25 250 N each group. same procedure performed twice. Results: First, values (Newton centimeter) stock versus custom as follows: group 1: 27.17 26.67, 2: 26.27 26.33, 3: 37.33 36.67. Second...

10.1097/id.0000000000000481 article EN Implant Dentistry 2016-08-27

Digital feedback for tooth preparation can provide dental practitioners with more objective and accurate evaluations compared to conventional methods. This study aimed evaluate the educational effect satisfaction of digital those putty index method preparation.Forty-eight third-grade students were selected. All performed a full-coverage on right mandibular first molar resin tooth. They randomly divided into four groups (n = 12)-no guide (control), index, feedback, assessment....

10.1111/eje.12799 article EN European Journal Of Dental Education 2022-04-05
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