Restorative Dentistry & Endodontics

Ji-Hyun Bae

6 Articles

Clinical evaluation of a new extraction method for intentional replantation: Yong-Hoon Choi, Ji-Hyun Bae; J Korean Acad Conserv Dent 2011;36(3):211-218. Published online May 31, 2011; DOI: https://doi.org/10.5395/JKACD.2011.36.3.211

Purpose

Intentional replantation (IR) is a suitable treatment option when nonsurgical retreatment and periradicular surgery are unfeasible. For successful IR, fracture-free safe extraction is crucial step. Recently, a new extraction method of atraumatic safe extraction (ASE) for IR has been introduced.

Patients and Methods

Ninety-six patients with the following conditions who underwent IR at the Department of Conservative Dentistry, Seoul National University Bundang Hospital, in 2010 were enrolled in this study: failed nonsurgical retreatment and periradicular surgery not recommended because of anatomical limitations or when rejected by the patient. Preoperative orthodontic extrusive force was applied for 2-3 weeks to increase mobility and periodontal ligament volume. A Physics Forceps was used for extraction and the success rate of ASE was assessed.

Results

Ninety-six premolars and molars were treated by IR. The complete success rate (no crown and root fracture) was 93% (n = 89); the limited success rates because of partial root tip fracture and partial osteotomy were 2% (n = 2) and 5% (n = 5), respectively. The clinical and overall success rates of ASE were 95% and 100%, respectively; no failure was observed.

Conclusions

ASE can be regarded as a reproducible, predictable method of extraction for IR.

Citations

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Bone Loss and Soft Tissue Loss Following Orthodontic Extraction Using Conventional Forceps versus Physics Forceps: A Prospective Split Mouth Study
D. Alden Schnyder Jason, S. Gidean Arularasan, Murugesan Krishnan, M. P. Santhosh Kumar, Saravanan Lakshmanan
Journal of Maxillofacial and Oral Surgery.2025; 24(1): 301. CrossRef
Minimally Invasive Extraction System Benex—Clinical Evaluation and Comparison
Lyubomir Chenchev, Vasilena Ivanova, Krikor Giragosyan, Tasho Gavrailov, Ivan Chenchev
Dentistry Journal.2024; 12(8): 234. CrossRef
Minimally invasive extractions with physics forceps – clinical evaluation and comparison
Lyubomir I. Chenchev, Vasilena V. Ivanova, Ivan L. Chenchev, Hristo I. Daskalov
Folia Medica.2024; 66(2): 235. CrossRef
Orthodontic Extrusion vs. Surgical Extrusion to Rehabilitate Severely Damaged Teeth: A Literature Review
Martina Cordaro, Edoardo Staderini, Ferruccio Torsello, Nicola Maria Grande, Matteo Turchi, Massimo Cordaro
International Journal of Environmental Research and Public Health.2021; 18(18): 9530. CrossRef
Comparison of the efficiency of arm force versus arm force plus wrist movement in closed method extractions an observational study
Prashanth Sundaram, Saravanan Kandasamy, Reena Rachel John, K. C. Keerthana Sri
National Journal of Maxillofacial Surgery.2021; 12(2): 250. CrossRef
Surgical extrusion of a maxillary premolar after orthodontic extrusion: a retrospective study
Yong-Hoon Choi, Hyo-Jung Lee
Journal of the Korean Association of Oral and Maxillofacial Surgeons.2019; 45(5): 254. CrossRef
A Cone-beam Computed Tomographic Study of Apical Surgery–related Morphological Characteristics of the Distolingual Root in 3-rooted Mandibular First Molars in a Chinese Population
Xiao Zhang, Ning Xu, Hanguo Wang, Qing Yu
Journal of Endodontics.2017; 43(12): 2020. CrossRef
Influence of Apical Root Resection on the Biomechanical Response of a Single-rooted Tooth—Part 2: Apical Root Resection Combined with Periodontal Bone Loss
Youngjune Jang, Hyoung-Taek Hong, Heoung-Jae Chun, Byoung-Duck Roh
Journal of Endodontics.2015; 41(3): 412. CrossRef
Comparison Between Physics and Conventional Forceps in Simple Dental Extraction
Mohamed H. El-Kenawy, Wael Mohamed Said Ahmed
Journal of Maxillofacial and Oral Surgery.2015; 14(4): 949. CrossRef
Clinical outcome of intentional replantation with preoperative orthodontic extrusion: a retrospective study
Y. H. Choi, J. H. Bae, Y. K. Kim, H. Y. Kim, S. K. Kim, B. H. Cho
International Endodontic Journal.2014; 47(12): 1168. CrossRef
Sealing Ability of Three Different Materials Used as Retrograde Filling
Ji-Hoon Park, Seung-Bok Kang, Yong-Hoon Choi, Ji-Hyun Bae
Journal of Korean Dental Science.2012; 5(2): 60. CrossRef
Cone-Beam Computed Tomography Study of Incidence of Distolingual Root and Distance from Distolingual Canal to Buccal Cortical Bone of Mandibular First Molars in a Korean Population
Sin-Young Kim, Sung-Eun Yang
Journal of Endodontics.2012; 38(3): 301. CrossRef

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The effect of the strength and wetting characteristics of Bis-GMA/TEGDMA-based adhesives on the bond strength to dentin: Eun-Sook Park, Chang-Keun Kim, Ji-Hyun Bae, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2011;36(2):139-148. Published online March 31, 2011; DOI: https://doi.org/10.5395/JKACD.2011.36.2.139

Abstract PDF PubReader ePub

Objectives

This study investigated the effect of the strength and wetting characteristics of adhesives on the bond strength to dentin. The experimental adhesives containing various ratios of hydrophobic, low-viscosity Bis-M-GMA, with Bis-GMA and TEGDMA, were made and evaluated on the mechanical properties and bond strength to dentin.

Materials and Methods

Five experimental adhesives formulated with various Bis-GMA/Bis-M-GMA/TEGDMA ratios were evaluated on their viscosity, degree of conversion (DC), flexural strength (FS), and microtensile bond strength (MTBS). The bonded interfaces were evaluated with SEM and the solubility parameter was calculated to understand the wetting characteristics of the adhesives.

Results

Although there were no significant differences in the DC between the experimental adhesives at 48 hr after curing (p > 0.05), the experimental adhesives that did not contain Bis-GMA exhibited a lower FS than did those containing Bis-GMA (p < 0.05). The experimental adhesives that had very little to no TEGDMA showed significantly lower MTBS than did those containing a higher content of TEGDMA (p < 0.05). The formers exhibited gaps at the interface between the adhesive layer and the hybrid layer. The solubility parameter of TEGDMA approximated those of the components of the primed dentin, rather than Bis-GMA and Bis-M-GMA.

Conclusions

To achieve a good dentin bond, a strong base monomer, such as Bis-GMA, cannot be completely replaced by Bis-M-GMA for maintaining mechanical strength. For compatible copolymerization between the adhesive and the primed dentin as well as dense cross-linking of the adhesive layer, at least 30% fraction of TEGDMA is also needed.

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Equivalence study of the resin-dentine interface of internal tunnel restorations when using an enamel infiltrant resin with ethanol-wet dentine bonding
Andrej M. Kielbassa, Sabrina Summer, Wilhelm Frank, Edward Lynch, Julia-Susanne Batzer
Scientific Reports.2024;[Epub] CrossRef
Physical properties and cytotoxicity of antimicrobial dental resin adhesives containing dimethacrylate oligomers of Ciprofloxacin and Metronidazole
Yasaman Delaviz, Timothy W. Liu, Ashley R. Deonarain, Yoav Finer, Babak Shokati, J. Paul Santerre
Dental Materials.2019; 35(2): 229. CrossRef

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Pulp response of beagle dog to direct pulp capping materials: Histological study: Ji-Hyun Bae, Young-Gyun Kim, Pil-Young Yoon, Byeong-Hoon Cho, Yong-Hoon Choi; J Korean Acad Conserv Dent 2010;35(1):5-12. Published online January 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.1.005

Abstract PDF PubReader ePub

The purpose of this study was to evaluate the pulp tissue reaction to direct pulp capping of mechanically exposed beagle dogs'pulp with several capping materials. A total of 36 teeth of 2 healthy beagle dongs were used. The mechanically exposed pulps were capped with one of the followings: (1) Mineral Trioxide Aggregate (MTA: ProRoot® MTA, Dentsply, Tulsa, USA), (2) Clearfil SE Bond (Dentin adhesive system: Kuraray, Osaka, Japan), (3) Ultra-Blend (Photo-polymerized Calcium hydroxide: Ultradent, South Jordan, USA), (4) Dycal (Quick setting Calcium hydroxide: LD Caulk Co., Milford, USA) at 7, 30, and 90 days before sacrificing. The cavities were restored with Z350 flowable composite resin (3M ESPE, St. Paul. MN, USA). After the beagle dogs were sacrificed, the extracted teeth were fixed, decalcified, prepared for histological examination and stained with HE stain. The pulpal tissue responses to direct pulp capping materials were assessed.

In MTA, calcium hydroxide, and photo-polymerized calcium hydroxide groups, initial mild inflammatory cell infiltration, newly formed odontoblast-like cell layer and hard tissue bridge formation were observed. Compared with dentin adhesive system, these materials were biocompatible and good for pulp tissue regeneration.

In dentin adhesive system group, severe inflammatory cell infiltration, pulp tissue degeneration and pulp tissue necrosis were observed. It seemed evident that application of dentin adhesive system in direct pulp capping of beagle dog teeth cannot lead to acceptable repair of the pulp tissue with dentine bridge formation.

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Experimental Study of Pulp Capping Using Xenogenic Demineralized Dentin Paste
Ji-Young Yun, Yong-Hoon Choi, Young-Kyun Kim, In-Woong Um, Joo-Cheol Park, Ji-Yoon Kim
Journal of Hard Tissue Biology.2016; 25(3): 321. CrossRef
Comparison of gene expression profiles of human dental pulp cells treated with mineral trioxide aggregate and calcium hydroxide
Yong-Beom Kim, Won-Jun Shon, Woocheol Lee, Kee-Yeon Kum, Seung-Ho Baek, Kwang-Shik Bae
Journal of Korean Academy of Conservative Dentistry.2011; 36(5): 397. CrossRef
Gene expression profiling in human dental pulp cells treated with mineral trioxide aggregate
Yong-Beom Kim, Won-Jun Shon, WooCheol Lee, Kee-Yeon Kum, Seung-Ho Baek, Kwang-Shik Bae
Journal of Korean Academy of Conservative Dentistry.2010; 35(3): 152. CrossRef
Histology of dental pulp healing after tooth replantation in rats
Eun-Jin Go, Han-Seong Jung, Eui-Seong Kim, Il-Young Jung, Seung-Jong Lee
Journal of Korean Academy of Conservative Dentistry.2010; 35(4): 273. CrossRef

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THE EFFECT OF PRIMING ETCHED DENTIN WITH SOLVENT ON THE MICROTENSILE BOND STRENGTH OF HYDROPHOBIC DENTIN ADHESIVE: Eun-Sook Park, Ji-Hyun Bae, Jong-Soon Kim, Jae-Hoon Kim, In-Bog Lee, Chang-Keun Kim, Ho-Hyun Son, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2009;34(1):42-50. Published online January 14, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.1.042

Abstract PDF PubReader ePub: Abstract
Deterioration of long-term dentin adhesion durability is thought to occur by hydrolytic degradation within hydrophilic domains of the adhesive and hybrid layers. This study investigated the hypothesis that priming the collagen network with an organic solvent displace water without collapse and thereby obtain good bond strength with an adhesive made of hydrophobic monomers and organic solvents. Three experimental adhesives were prepared by dissolving two hydrophobic monomers, bisphenol-A-glycidylmethacrylate (Bis-GMA) and triethylenegly-col dimethacrylate (TEGDMA), into acetone, ethanol or methanol. After an etching and rinsing procedure, the adhesives were applied onto either wet dentin surfaces (wet bonding) or dentin surfaces primed with the same solvent (solvent-primed bonding). Microtensile bond strength (MTBS) was measured at 48 hrs, 1 month and after 10,000 times of thermocycles. The bonded interfaces were evaluated using a scanning electron microscope (SEM). Regardless of bonding protocols, well-developed hybrid layers were observed at the bonded interface in most specimens. The highest mean MTBS was observed in the adhesive containing ethanol at 48 hrs. With solvent-primed bonding, increased MTBS tendencies were seen with thermocycling in the adhesives containing ethanol or methanol. However, in the case of wet bonding, no increase in MTBS was observed with aging.

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The effect of cavity wall property on the shear bond strength test using iris method: Dong-Hwan Kim, Ji-Hyun Bae, Byeong-Hoon Cho, In-Bog Lee, Seung-Ho Baek, Hyun-Mi Ryu, Ho-Hyun Son, Chung-Moon Um, Hyuck-Choon Kwon; J Korean Acad Conserv Dent 2004;29(2):170-176. Published online March 31, 2004; DOI: https://doi.org/10.5395/JKACD.2004.29.2.170

Abstract PDF PubReader ePub

Objectives

In the unique metal iris method, the developing interfacial gap at the cavity floor resulting from the cavity wall property during polymerizing composite resin might affect the nominal shear bond strength values. The aim of this study is to evaluate that the iris method reduces the cohesive failure in the substrates and the cavity wall property effects on the shear bond strength tests using iris method.

Materials and Methods

The occlusal dentin of 64 extracted human molars were randomly divided into 4 groups to simulate two different levels of cavity wall property (metal and dentin iris) and two different materials (ONE-STEP® and ALL-BOND® 2) for each wall property. After positioning the iris on the dentin surface, composite resin was packed and light-cured. After 24 hours the shear bond strength was measured at a crosshead speed of 0.5 mm/min. Fracture analysis was performed using a microscope and SEM. The data was analyzed statistically by a two-way ANOVA and t-test.

Results

The shear bond strength with metal iris was significant higher than those with dentin iris (p = 0.034). Using ONE-STEP®, the shear bond strength with metal iris was significant higher than those with dentin iris (p = 0.005), but not in ALL-BOND® 2 (p = 0.774). The incidence of cohesive failure was very lower than other shear bond strength tests that did not use iris method.

Conclusions

The iris method may significantly reduce the cohesive failures in the substrates. According to the bonding agent systems, the shear bond strength was affected by the cavity wall property.

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Effect of infection control barrier thickness on light curing units
Hoon-Sang Chang, Seok-Ryun Lee, Sung-Ok Hong, Hyun-Wook Ryu, Chang-Kyu Song, Kyung-San Min
Journal of Korean Academy of Conservative Dentistry.2010; 35(5): 368. CrossRef

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Influence of the curing time for the adhesive on the oxygen-inhibited layer thickness and the shear bond strength to dentin: Yong-Hoon Choi, Ji-Hyun Bae, Ho-Hyun Son, In-Bog Lee, Chung-Moon Um, Seung-Ho Baek, Oh-Young Kim, Chang-Keun Kim, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2004;29(2):177-184. Published online January 14, 2004; DOI: https://doi.org/10.5395/JKACD.2004.29.2.177

Abstract PDF PubReader ePub: ABSTRACT Objectives:
This study investigated the hypothesis that increasing light-curing time would leave the oxygen-inhibited layer (OIL) of the adhesive thinner, and in turn, result in lower shear bond strength (SBS) than those obtained by the routine curing procedures.
Methods:
120 human extracted posterior teeth were randomly divided into three groups for bonding with three adhesives: All Bond 2®, One Step®, and Adper Prompt®. They were subsequently divided into four subgourps with different light-curing time (10, 20, 30 and 60 s). The assigned adhesives were applied on superficial occlusal dentin according to the manufacturer’s instructions and cured with one of the four curing times. Composite resin cylinder, 2.35 mm in diameter, were built on the cured adhesive and light-cured for 40 s. SBS were measured after 24 h from the bonding using a universal testing machine (crosshead speed 1.0 mm/min). The relative thickness of the OIL and the degree of conversion (DC) were determined from the adhesive on a slide glass using FT-NIR in an absorbance mode. Data were analysed with One-way ANOVA and Duncan’s multiple test (p < 0.05).
Results:
With increasing cure time, although there were no significant difference in th SBS of One-step and Adper Prompt (p > 0.05), those of All Bond 2 decreased significantly (p < 0.05). The relative thicknesses of the OIL on each adhesive were not affected by the cure time (p > 0.05). Although the DC of All-Bond 2 were statistically not different with increasing cure time (p > 0.05), those of One-Step and Adper Prompt showed an increasing trends with increasing cure time (p < 0.05).
Conclusions:
Increasing light-curing time did not affect on the relative thickness of the OIL of the adhesives, and in turn, on the SBS to dentin.

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