Publications by authors named "Ping Ho Chen"

Betel quid (BQ) use disorder (BUD) is prevalent in many Asian countries, impacting approximately 600 million people. We conducted a randomized clinical trial to analyze the impact of MAOA genetic variations on the severity of BQ craving. This was measured using criteria and the Yale-Brown Obsessive-Compulsive Scale modified for betel quid use (Y-BOCS-BQ).

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Background: Intrauterine adhesions (IUA) are a challenging clinical problem in reproductive infertility. The most common causes are intrauterine surgery and abortions. We aimed to investigate whether early second-look office hysteroscopy can prevent IUA.

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Endometriosis is a common gynecological disorder affecting around 10% of reproductive-age women. Although many hypotheses were proposed, genetic alteration has been considered as one of the key factors promoting pathogenesis. Due to racial/ethnic disparities in the process of hormone regulation and nutrition metabolism, a genome-wide association study (GWAS) with 2794 cases and 27,940 controls was conducted in a Taiwanese-Han population.

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Background: Segmental bone defects of the mandible result in the complete loss of the affected region. We had incorporated the pressure-reducing device (PRD) designs into the customized mandible prostheses (CMP) and conducted a clinical trial to evaluate this approach.

Methods: Seven patients were enrolled in this study.

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Background/purpose: As science and technology continue to advance, the utilization of intraoral scanners (IOSs) has become increasingly popular in the orthodontic workflow. The aim of this study was to discuss whether the degree of crowded arches affects scan accuracy.

Materials And Methods: Three different crowding levels of dental models (model MI: mild, model MO: moderate, and model SE: severe) were scanned using both an IOS and desktop scanner.

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Background/purpose: Clinically, dentists are suggested to immerse autopolymerizing interim fixed restorations in hot water during fabrication. However, this suggestion, without including the best temperature, mostly comes from clinical experience instead of scientific evidence. This in vitro study evaluated the effect of water temperature on the cytotoxicity of interim partial fixed dental prostheses (FDPs) and examined its correlation with residual MMA.

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Background/purpose: Segmental body defects of the mandible result in the complete loss of the affected region. In our previous study, we investigated the clinical applicability of a customized mandible prosthesis (CMP) with a pressure-reducing device (PRD) in an animal study. In this study, we further incorporated dental implants into the CMP and explored the use of dental implant PRD (iPRD) designs.

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The objective of this study was aimed to develop and validate an instrument for post-COVID-19 symptoms in adults. Data were collected from adults with a previous COVID-19 diagnosis in Taiwan. We developed the initial instrument through systematic review and expert feedback.

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Rationale: Black hairy tongue (BHT) is a rare condition that is conventionally managed by discontinuing associated medications or habits and practicing good oral hygiene, including tongue brushing. Previous studies have indicated that black tongue coating is often associated with gastrointestinal discomfort, which traditional Chinese medicine (TCM) could be a potentially effective option for treating this condition with minimal side effects. We present a case of BHT diagnosed and treated within 2 weeks by using TCM methods.

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Article Synopsis
  • The study compared normal and floating builds of Ti-6Al-4V made through electron beam additive manufacturing, focusing on their microstructure, mechanical properties, and surface roughness.
  • Both builds exhibited similar α+β lamellar microstructures, but normal builds had finer grains leading to higher compressive yield strength and hardness.
  • Surface roughness was found to be smoothest on the top surface and roughest on the lateral surface for both builds, with no significant differences in microstructure or properties across various positions of the sample.
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Background/purpose: This is the first paper evaluating the efficacy of laser Doppler imager in diagnosis of pulpal vitality. The purpose of this study was to evaluate and compare the diagnostic benefits of laser Doppler imaging and electric pulp test (EPT) in dental trauma.

Materials And Methods: Seven patients were selected for pulp vitality evaluation in Kaohsiung Medical University Hospital between 2018 and 2019.

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Anxiety and depressive disorders are the most prevalent mental disorders, and due to the COVID-19 pandemic, more people are suffering from anxiety and depressive disorders, and a considerable fraction of COVID-19 survivors have a variety of persistent neuropsychiatric problems after the initial infection. Traditional Chinese Medicine (TCM) offers a different perspective on mental disorders from Western biomedicine. Effective management of mental disorders has become an increasing concern in recent decades due to the high social and economic costs involved.

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This study aims to describe the relationship between physical activity, suboptimal health status based on traditional Chinese medicine, and psychological health in older people in Taiwan. A total of 4,497 older individuals were selected from the Taiwan Biobank Research Database. Suboptimal health status was assessed using a body constitution questionnaire to measure yang deficiency, yin deficiency, and stasis.

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Article Synopsis
  • - Endometriosis is linked to hormonal changes and may act as a precursor for certain ovarian cancers, leading researchers to explore the role of cancer-related long non-coding RNAs (lncRNAs) in this condition.
  • - The study identified genetic variations in the lncRNA UCA1 that enhance its stability, increasing the risk of endometriosis, which is also correlated with long-term pain and infertility among patients.
  • - Findings indicate that UCA1 influences fatty acid metabolism and mitochondrial functions, providing insight into how it contributes to the development of endometriosis in women.
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Background And Purpose: Health-seeking behavior has a direct impact on individual's health. A proper understanding of patients' demographics and health factors is essential in constructing high-quality health care services toward Chinese or Western medicine. The objective of this study was to understand the tendency among Taiwanese to opt for either Chinese or Western medicine when both services are available.

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Segmental bony defects of the mandible constitute a complete loss of the regional part of the mandible. Although several types of customized three-dimension-printed mandible prostheses (CMPs) have been developed, this technique has yet to be widely used. We used CMP with a pressure-reducing device (PRD) to investigate its clinical applicability.

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Article Synopsis
  • The research developed an Oncofertility Barrier Scale (OBS) to assess barriers affecting oncofertility care in breast cancer treatment, addressing a gap in valid assessment tools for healthcare providers.
  • The OBS underwent rigorous validation processes, including expert reviews and factor analysis, resulting in a six-factor model that highlights key barriers such as lack of education and insufficient support.
  • The final 27-item OBS demonstrated strong reliability and validity, making it a useful tool for both research and clinical settings to identify and address barriers in fertility care for cancer patients.
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Background: Previous studies indicate significant gaps exist in current practices and perceptions of oncofertility care.

Objectives: We aim to understand the clinical experience regarding oncofertility care among health providers in a multidisciplinary breast care team.

Methods: A qualitative, descriptive study was conducted.

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Objectives: To determine the minimum thickness required for a monolithic hybrid ceramic crown on different substrates (soft vs stiff) used in posterior dentition for bruxism.

Methods: 80 polymer-infiltrated ceramic networks Vita Enamic (PICN VE) disc specimens with four different occlusal thicknesses (0.8, 1.

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Article Synopsis
  • * A systematic review of 77 studies identified 18 relevant cases, showing a higher prevalence in females and an average patient age of around 71 years, primarily in the advanced stages of the disease.
  • * The surgical intervention for MRONJ showed an 86% clinical effectiveness rate, highlighting the importance of oral hygiene and regular dental check-ups for elderly patients to prevent and properly manage the condition.
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Lung cancer is a malignancy with high mortality worldwide, and metastasis occurs at a high frequency even when cancer spread is not detectable at primary operation. Cancer stemness plays an important role in malignant cancer behavior, treatment resistance, and cancer metastasis. Therefore, understanding the molecular pathogenesis behind cancer-stemness-mediated metastasis and developing effective approaches to prevent metastasis are key issues for improving cancer treatment.

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Purpose: This study explored the effects of genioplasty (Gep) and anterior subapical osteotomy of the maxilla and mandible (ASOMx+ASOMd) on the pharyngeal airway dimensions of patients with bimaxillary protrusion (BiP).

Method: Thirty-two patients were divided into 2 groups. Group 1 received ASOMx+ASOMd, and group 2 received ASOMx+ASOMd+Gep.

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Personalized tongue pressure (TP) training focuses on improving swallowing. This study aims to establish the TP values of different age levels and compare changes between different swallowing status among community-dwelling elders. In this cross-sectional study, 1000 participants, aged 60 years old and above, were recruited from community care centers.

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Objectives: This study aimed to investigate the mandibular canal of ramus and design a suitable osteotomy line for intraoral vertical ramus osteotomy (IVRO) using cone-beam computed tomography (CBCT).

Materials And Methods: Ninety patients were classified into class I, II, and III skeletal pattern groups. When extended from the horizontal base plane (0 mm, mandibular foramen [MF]), with a 2-mm section interval, to 10 mm above and 10 mm below the MF, the following landmarks were identified: external oblique ridge (EOR), posterior border of the ramus (PBR), and posterior lateral cortex of ramus (PLC): IVRO osteotomy point.

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