Impacted Wisdom Teeth Research Articles

Coronal Cementum and Reduced Enamel Epithelium on Occlusal Surface of Impacted Wisdom Tooth in a Human

Background: There is only limited research on the coronal cementum of a tooth, and the mechanisms of its forming process are not well-defined. This report presents a coronal cementum on the occlusal surfaces of enamel in an impacted wisdom tooth in a human, which is not nearly the cervical portion. Materials and Methods: The tooth (Tooth #1) was derived from a 46-year-old female. Histological analysis, including hematoxylin and eosin (HE) and toluidine blue (TB) staining, and Scanning Electron Microscopy and Energy Dispersive X-ray Spectrometer (SEM-EDS) analysis of the extracted tooth were conducted. Radiographic examination showed that Tooth #1 was horizontally impacted in the maxilla and had the apex of a single root placed between the buccal and palatal roots of Tooth #2. Results: Coronal cementum was distributed widely on the enamel, and reduced enamel epithelium was also found with enamel matrix proteins histologically. The formation of acellular cementum was observed to be more predominant than that of the cellular cementum in Tooth #1. SEM showed that the occlusal cementum connected directly with enamel. Calcium mapping revealed an almost similar occlusal cementum and enamel. In addition, the spectrum of elements in coronal cementum resembled the primary cementum according to SEM-EDS. Discussion: Thus, coronal cementogenesis in impacted human teeth might be related to the existence of reduced enamel epithelium.

Dental impact on daily life and oral health in alcohol use disorder patients

ObjectivesIndividuals with Alcohol Use Disorder (AUD) are at a higher risk of developing dental problems. The present study assessed the dental impact on daily performances among AUD patients seeking treatment in a de-addiction centre and correlated it with their clinical dental status using the WHO oral health assessment form (2013). Materials and methodsThis research took place from January to May 2022. A cross-sectional study was carried out to collect data from 103 subjects among alcohol dependents taking treatment in a de-addiction centre of Dakshina Kannada district, Karnataka state. The Dental Impact on Daily Living Questionnaire (DIDL) assessed patients' satisfaction with their teeth, while the WHO Oral Health Assessment Form for Adults was used for dental caries (DMFT) and periodontal status. Data analysis was performed using the jamovi open-source software (version 2.3), employing t-test, chi-square test, hierarchical regression analysis, and Spearman correlation coefficient. ResultsThe study found low yet significant correlations between clinical oral health and dimensions of the DIDL scale. Social class and the number of decayed teeth emerged as significant predictors of the total DIDL score. ConclusionOral health conditions can adversely affect patient satisfaction, emphasizing the need for healthcare providers to consider these findings when offering comprehensive oral healthcare services. Clinical relevanceThis study underscores the necessity of integrating oral healthcare into the overall treatment regime for individuals with Alcohol Use Disorders (AUDs) to improve their quality of life and satisfaction.

Effectiveness of platelet-rich fibrin in third molar extractions: a randomized controlled split-mouth study

ObjectivesTo date, studies have only investigated the use of platelet-rich fibrin (PRF) after removal of third molars from the mandible or maxilla. Removal of the upper and lower third molars is typically combined into one session per side; therefore, this study aimed to investigate influence on PRF.Materials and methodsThis prospective, single-blinded, randomized controlled, clinical trial (split-mouth design) included 25 patients. After third molar removal, the test group’s sockets were treated with solid PRF clots, whereas the control group’s sockets were conventionally treated. The primary outcome was swelling, which was measured digitally and analogously. Secondary outcomes included trismus, pus, hematoma, and clinical attachment loss (CAL) of the second molars on days 1, 3, 7, and 14. Patient-centered outcome measures and the consumption of painkillers and antibiotics were recorded on days 0–7. The t-test for paired samples, Wilcoxon test, and Chi-Square test were used for statistical analyses.ResultsSwelling was significantly lower on day 14 in the test group (p < 0.05). No statistically significant differences were observed in pain, trismus, and CAL. In the test group, the number of painkillers taken and the number of days of intake were significantly lower (p < 0.05).ConclusionsPRF caused a reduction of painkiller consumption and in the days painkillers were needed. PRF significantly considerably reduced swelling after 14 days. Owing to the lack of differences in other parameters, the integration of PRF application into routine wisdom tooth removal is critical.Clinical relevancePRF affects the long-term outcomes of third molar removal by reducing swelling and reducing as well as shortening painkiller consumption.Trial registrationclinicaltrials.gov (NCT05089812).

NEDD4L affects stability of the CHEK2/TP53 axis through ubiquitination modification to enhance osteogenic differentiation of periodontal ligament stem cells

ABSTRACT Background Checkpoint kinase 2 (CHEK2) and its regulated tumor protein p53 (TP53) have been correlated with osteogenic differentiation of osteoblast-like cells. Based on bioinformatics predictions, this study aims to investigate the effect of the CHEK2/TP53 axis on osteogenic differentiation of periodontal ligament stem cells (PDLSCs) and to explore the regulatory mechanism. Methods PDLSCs were isolated from human impacted wisdom teeth, and they were cultured in normal medium (NM) or osteogenic medium (OM). Protein levels of CHEK2 and TP53 were examined using western blot analysis. Osteogenic differentiation ability of PDLSCs was analyzed by measuring marker proteins (RUNX2, OCN, and OSX), ALP activity, and ALP staining. Molecular interaction between NEDD4 like E3 ubiquitin protein ligase (NEDD4L) and CHEK2 was examined by ubiquitination and co-immunoprecipitation assays. Gain- and loss-of function assays of NEDD4L, CHEK2, and TP53 were performed to analyze their function in osteogenic differentiation of PDLSCs. A rat model of mandibular bone defect was generated for in vivo validation. Results NEDD4L was upregulated, while CHEK2 and TP53 were downregulated in PDLSCs cultured in OM. CHEK2 protected TP53 from degradation, while NEDD4L reduced CHEK2 protein level by ubiquitination modification. NEDD4L silencing reduced osteogenic differentiation ability of PDLSCs both in vitro and in vivo, which was restored by CHEK2 silencing. By contrast, CHEK2 overexpression blocked the osteogenic differentiation of PDLSCs in vitro. Conclusion This study demonstrates that NEDD4L affects protein stability of the CHEK2/TP53 axis through ubiquitination modification, thus increasing osteogenic differentiation of PDLSCs.

Compound odontoma and impaction of the lower left deciduous canine in a 4-year-old child: diagnosis and treatment.

Odontomas are the most common odontogenic tumours, often considered hamartomas rather than true neoplasms. These mixed tumours consist of fully differentiated dental tissues, including enamel, dentin, cementum, and pulp. Odontomas can be classified into compound and complex types. While typically asymptomatic, they are often discovered during routine radiographic examinations for delayed tooth eruption. The management of odontomas generally involves surgical removal, which is effective in resolving associated dental impactions. We present the case of a healthy 4-year-old child who presented with the absence of the lower left deciduous canine (tooth 7.3) in the dental arch. Radiographic examination revealed multiple radiopaque masses indicative of a compound odontoma associated with the unerupted deciduous canine. Following detailed imaging and surgical planning, the odontoma was successfully enucleated under conscious sedation with nitrous oxide. The surgical procedure was performed without extracting the retained canine. Post-operative follow-up at two weeks showed excellent healing, and at seven months, partial eruption of the canine was observed, confirming the odontoma's role in impeding its eruption. This case underscores the importance of early diagnosis and management of odontomas to prevent potential impaction of associated teeth. The successful surgical removal of the odontoma facilitated the spontaneous eruption of the lower left deciduous canine, highlighting the effectiveness of early intervention. Conscious sedation with nitrous oxide proved to be a valuable tool in managing the young patient, ensuring cooperation and comfort during the procedure. Early identification and treatment of odontomas are crucial for promoting normal dental development and preventing future malocclusions.

EXODONTIA DE DENTES IMPACTADOS – RELATO DE CASO

Dental impaction is characterized as a situation in which a tooth cannot completely emerge in its normal functional position, and may encounter another structure. Extracting an unerupted and impacted tooth is essential to avoid complications related to this type of pathology. Although tooth extraction surgeries are common in the professional’s daily life, the extraction of an element that has not reached its functional position can be complicated; especially if the dentist is not properly qualified or does not have mastery of the techniques necessary for this procedure. Cases of impaction of the lower second molar occur due to the reduction of space between the distal of the lower first molar and the anterior edge of the ascending ramus of the mandible and may or may not present painful symptoms. Exodontia is a predilection to be considered. Therefore, the purpose of this report is to report a clinical case of extraction of an impacted second molar and its justification is to emphasize the importance of the pre- operative period, which must adequately include anamnesis and complementary exams, and present transoperative techniques that were the difference for the case. Keywords: Impacted tooth. Exodontia. Surgical complications.

Case Report: Managing Odontoma and Molar-Incisor-Hypomineralization Challenges in Orthodontics: A Case Report

This report presents the successful orthodontic management of a case of odontoma associated with impaction of the mandibular right permanent canine and Molar-incisor-hypomineralization (MIH). Although case studies have reported the management of odontomas and MIH as separate entities, there is a lack of evidence regarding the comprehensive management of patients presenting with a combination of odontoma, dental impaction, and MIH. A 15-year, 7-month-old female patient complained of the appearance of her smile and the delayed eruption of her mandibular right permanent canine. She was diagnosed with Angle’s Class I molar relationship and Class II canine relationship with the maxillary permanent right lateral incisor in a lingual crossbite. Furthermore, she had mandibular right permanent canine impaction, retained mandibular right primary canine, and MIH in the permanent anterior teeth and first molars. The management involved the removal of the odontoma to allow for orthodontic traction of the lower permanent right canine. After that, the esthetic appearance of the teeth was improved through restorative treatment.

The Impact of the Chlorhexidine Gel (WISDOM®) on Postoperative Sequelae Associated with the Surgical Removal of Impacted Mandibular Third Molars: A Randomized Controlled Clinical Trial

Background: One of the most prevalent procedures in oral surgery is the removal of impacted mandibular third molars, typically accompanied by trismus, edema, and pain. Several methods and biomaterials were implemented to mitigate or avoid these surgical problems. Objectives: To evaluate the efficiency of chlorhexidine gel (WISDOM®) in minimizing postoperative sequelae associated with the impacted mandibular third molar that will be surgically extracted and its role in promoting early soft tissue closure of the surgical site. Methods: The study design was a double-masked and randomized, controlled clinical study that included healthy patients needing the removal of a mandibular third molar through surgery. The participants were randomly assigned to two groups. The extraction site of the study group was filled with a mixture of gel foam and WISDOM®. In contrast, we filled the extraction sites of the control group patients with gel foam and sutured the surgical sites for both groups. The patients were evaluated on the first, third, and seventh postoperative days for pain, swelling, trismus, and early soft tissue healing. Results: Sixty eligible patients were enrolled in this study. The study group exhibited a statistically significant decrease in pain, edema, trismus, and early soft tissue healing on the first, third, and seventh postoperative days compared to the control group. Conclusions: WISDOM® gel can effectively reduce postoperative pain, trismus, and swelling and promote early soft tissue healing after surgical removal of an impacted mandibular wisdom tooth.

Protocol for Diagnostic Test Accuracy Study: Evaluation of Cone Beam Computed Tomography (CBCT) in Prediction of Inferior Alveolar Nerve Injury as Compared to Orthopantomography (OPG) Secondary to Surgical Removal of Impacted Mandibular Third Molars.

Introduction Impairment of the inferior alveolar/dental nerve (IAN) is a relatively uncommon complication after lower wisdom tooth removal. Studies report varying incidences of IAN injury, with dysesthesia being noted as particularly distressing and 0-0.9% cases extending for a long duration. Neurosensory disruptions can severely impact speech, chewing, swallowing, and social interactions, leading to chronic pain and a lower quality of life. It also poses a risk of inadvertent injuries during meals. Although orthopantomogram (OPG) is primarily used for diagnosis, but when the lower wisdom tooth and nerve are in close approximation, cone beam computed tomography (CBCT) is recommended, despite its higher cost and radiation exposure. A white paper on third molar management necessitates further research on CBCT's role, citing conflicting evidence. Further in a multicentric trial, the difference between the OPG versus CBCT group was not statistically significant due to the low incidence of IAN injuries. They have emphasized the need for more well-designed studies to reach a statistically significant conclusion by meta-analyses. Hence, this study aims to provide additional evidence. Methods It is a two-arm, parallel, diagnostic study design involving individuals between the ages of 18 and 50 years, requiring lower wisdom tooth removal that is closely approximated with the nerve. Eligible adults, based on the specified inclusion/exclusion criteria, will be recruited into the study; informed consent will be obtained; then assigned randomly to the OPG or CBCT group using a random computer-generated sequence. Extractions will be done under local anesthesia using a standard surgical protocol with odontectomy. Surgical variables will include the experience of the surgeon, amongst others. The outcome variables will be recorded using patient interviews (subjective) and objective examinations from day one up to six months after surgery. The primaryoutcome will comprise the number of patients reporting abnormal sensations post-surgery. Secondary outcomes will include objectively confirmed IAN injuries and permanent IAN injuries (>6 months). Results will be analyzed statistically to look for significance and possible risk factors associated with it. Results If a statistically significant result is obtained, then we can deliberately reduce CBCT referrals and reserve them only for high-risk cases, wherein the risk of IAN injury cannot be predicted by OPG alone. If the experience of the surgeon proves to be an important risk factor, then it can also help refer high-risk patients to surgeons with more experience. Conclusion If CBCT proves to be statistically superior to OPG in the prediction of nerve injury, then we will be able to avoid significant morbidity and improve the quality of life of such patients by either modifying the surgical steps or by choosing other conservative treatment modalities. Further, this may reduce unnecessary CBCT referrals, thus reducing radiation exposure, the cost to patients, and, in turn, national healthcare expenditure. Besides, CBCT is not available at all centers, so a lot of low-risk patients can be managed safely at primary health centers, thus reducing the urban patient load.

A Rare Complication in the Oral Local Infiltration Anesthesia.

The present report describes a rare complication named Kuhn anemia, which happened during local infiltration anesthesia of maxillary wisdom tooth. A 24-year-old male was referred for residual crown of left maxillary wisdom tooth and therefore required extraction. Oral examination revealed a buccal impacted left maxillary wisdom tooth (28), severe caries affecting the dental pulp, and pain with percussion. This case was diagnosed as impacted wisdom tooth 28 and pulpitis. Thus, the authors performed an extraction of the 28. After injection of articaine hydrochloride (68mg:1.7mL) containing epinephrine (1:100,000) as local anesthetic, the patient felt pain and heat in the left cheek, and an irregularly shaped pale area appeared on the left cheek. The authors stopped the surgery and comforted him. After a 30-minute break, the cheek turned normal, and abnormal sensation was no longer felt.

Application of Concentrated Growth Factors in Combination with Bio-Oss for Extraction of Mandibular Proximal Impacted Wisdom Teeth

In this study, we investigate the combined application of concentrated growth factor (CGF) and Bio-Oss (BO) for the treatment of periodontal bone defect (BD) after extraction of impacted wisdom teeth. Firstly, we assess the osteogenic properties of CGF in periodontal ligament stem cells (PDLSCs). The concentration-dependent effect of CGF on enhancing the activity of PDLSCs has been demonstrated. Furthermore, CGF effectively promotes differentiation and enhances the osteogenic function of PDLSCs, leading to improved expression of related osteogenic proteins. Subsequently, a total of 64 patients with loss of alveolar bone in the second molar, who received treatment at our hospital between July 2020 and July 2023, are included. They are randomly divided into a BO group (treated with BO) and a CGF/BO group (treated with CGF+BO). We observe that the combined application of CGF and BO demonstrated superior efficacy in alleviating pain, reducing swelling, and preventing dry socket incidence. In addition, it exhibited enhanced effectiveness in restoring periodontal tissue, including reducing probing depth, gingival depth, and clinical attachment loss. It also displayed better inhibition of gingival inflammatory response and gingival bleeding. Furthermore, it could enhance the restoration of periodontal BD, such as increasing the width of the alveolar bone and root depth, reducing the vertical distance from the apex of the alveolar ridge, as well as improving dental function. Therefore, the combined application of CGF and BO holds great potential in periodontal BD therapy for promoting the regeneration of periodontal bone, thus restoring dental function.

A Comparison of Immunohistochemical Expression of Epidermal Growth Factor Receptor and Human Epidermal Growth Factor Receptor 2 in Dental Follicles with Different Radiographic Sizes.

Odontogenic cysts and tumors develop from the dental follicle of asymptomatic impacted teeth. Odontogenic tissues express the epidermal growth factor receptor family (EGFR), which mediates cell proliferation, survival, and neoplastic differentiation. The present study aimed to compare the immunohistochemical expression of EGFR and human epidermal growth factor receptor 2 (HER2) in the dental follicle of impacted wisdom teeth with normal and abnormal radiographic size. In this analytical study, immunohistochemical staining of EGFR and HER2 was performed on 30 normal and 30 abnormal follicles of impacted third molars. Follicles with a width of <2.5 mm were considered normal, whereas those with a width of ≥2.5 mm were regarded as abnormal. The immunoreactive score (IRS) was used to report the expression levels of EGFR and HER2. The obtained data were analyzed using SPSS software. Age and sex were compared in normal and abnormal groups with independent t test and Chi square test, respectively. P<0.05 was considered statistically significant. The EGFR and HER2 overall expression was high in all normal and abnormal follicles. The comparison of the percentage of stained cells and intensity of EGFR and HER2 staining in normal and abnormal follicles were not significantly different (P=0.73, P=0.63, P=0.95, respectively). Due to the high expression of EGFR and HER2 in normal and abnormal follicles, as well as the lack of significant differences in these two groups, the radiographic size of dental follicles might not indicate the potential capabilities of their cells, and more research in this field is recommended.

Preliminary discussion on the whole life-cycle management of wisdom teeth health

The impaction rate of wisdom teeth is increasingly high, leading to more and more serious clinical problems. For a long time, the primary approach to managing wisdom teeth has been direct extraction, with a notable lack of systematic and diversified treatment methods. This article introduces, for the first time, the concept of whole life-cycle health management for wisdom teeth and suggests that the window for wisdom teeth life-cycle health management should be moved forward to the tooth germ stage. For tooth germs of wisdom teeth with severe risks, timely and necessary intervention should be administered. For normally erupting wisdom teeth, efforts should be made to maintain their health so they can function over the long term. For impacted wisdom teeth that have not caused related clinical symptoms, careful observation and cautious extraction should be considered. If necessary, techniques such as orthodontics and autotransplantation can be used to functionalize them. For impacted wisdom teeth that have caused clinical symptoms, functional oral surgical principles should be applied to reduce surgical trauma and prevent intraoperative and postoperative complications using advanced clinical techniques.

Exploring the impact of oral health on the quality of life in older patients: a cross-sectional study

ObjectiveTo investigate the significant impact of oral health on the quality of life of older individuals in Riyadh, Saudi Arabia, across various socioeconomic and demographic contexts.MethodsA cross- sectional study was conducted, involving the distribution of a translated online questionnaire based on the OHQoL-UK® tool to evaluate oral health-related quality of life OHRQoL. This included utilizing the Oral Health Quality of Life Scale to assess overall quality of life.ResultsA total of 586 participants were involved in the study, with the majority being over 60 years old (77.1%). The mean score of OHRQoL was 3.79. The Social Dental Scale SDS had a mean score of 0.71. The General Oral Health Assessment GOHS scored 3.51 on average. The mean score of Dental Impact Profile DIP was 3.12. The Subjective Oral Health Status Indicators SOHSIs had a mean score of 3.82. The mean score of Oral Health Benefit of Life Inventory OHBLI averaged at 4.04, and Dental Impact on Daily Living DIDL scored an average of 4.05. The mean scores of OHRQoL and Oral Impacts on Daily Performance OIDP were 3.90 and 3.89 respectively. Cronbach’s Alpha values ranged from 0.854 to 0.939, with an overall questionnaire reliability of 0.977, indicating a good reliability of the study’s tool.ConclusionOlder adults exhibited lower OHRQoL compared to younger adults, particularly influenced by factors such as health insurance coverage, monthly income, and educational level. It is essential to develop health programs specifically tailored for senior adults to safeguard their overall health and quality of life. Making health and medical insurance obligatory and accessible to all individuals is crucial for enhancing their QoL and reducing the diseases.

Prevalence and Pattern of Tooth Impaction: A Radiographic Study in a Trinidadian Population.

The aim of this retrospective study was to determine the prevalence and patterns of impacted third molars in a Trinidadian population. A total of 1500 orthopantomograms (OPG) taken at the School of Dentistry, University of the West Indies, from 2008 to 2019 in patients between 15 and 67 years old were evaluated. From the data collected, the prevalence of third molar impaction, the parameters of gender, angulation, level of impaction, and associated pathologies were evaluated. Other types of impacted teeth were also recorded. Of the 1500 OPG viewed, 408 (27.2%) of the study sample presented with at least one impacted third molar. 161 (39.5%) were males and 247 (60.5%) were females, with a male-to-female ratio of 1:1.5. There was a greater incidence of mandibular third molars versus maxillary third molars, which had a frequency of 77.9% and 22.1%, respectively. The most common type of impaction (Winter's classification) was horizontal in the mandible and distoangular in the maxilla. The most common level of impaction in the mandible (Pell and Gregory classification) was level 1A. The total number of impacted teeth was 775, and of these, 75 (9.7%) showed other impacted teeth besides the third molars. Canines and second premolars were the most prevalent with 7.6% and 1.5%, respectively. Caries on the second molar (49.3%) and third molars (40%) were the most frequently associated pathologies identified. The prevalence of impacted wisdom teeth in this study was 27%. These results raise awareness and provide insight among dental professionals in Trinidad as to the prevalence of impacted third molars, their patterns, as well as commonly associated pathologies, and the need for screening within the population.

Impact of Mucous Adhesive Membrane in Reducing Edema and Pain Post-Surgical Removal of Lower Wisdom Teeth

One of the most prevalent challenges that a specialized oral surgeon might encounter involves extracting impacted lower wisdom teeth, which can lead to post-operative complications like swelling and pain. Various techniques have been developed to mitigate these issues. In this research, we aimed to introduce a novel approach in oral surgery known as adhesive membrane oral aid. This study utilized a split-mouth design to assess the efficacy and impact of the adhesive membrane following the surgical removal of lower wisdom teeth in 10 patients. The split-mouth design enables both the control and study groups to be assigned within the same patient, reducing variability between different patients. The research involved a total of 10 patients who presented bilateral impaction of lower wisdom teeth and were recommended for surgical extraction. In the control group, the patient's ipsilateral side was sutured without the use of a membrane. After one month, the contralateral side of the same patient was sutured with a membrane using figure 8 sutures.

Evaluation of a New Simplified Approach for Upper Superficial Impacted Third Molar Extraction-A Retrospective Split-Mouth Study.

A new access technique was developed to reduce postoperative adverse events after the extraction of impacted maxillary wisdom teeth. Hence, this study aimed to assess the occurrence of adverse events after the extraction of maxillary impacted wisdom teeth using a traditional access (TA) or a new technique (NT). Two different surgical incision designs were used for bilateral wisdom tooth extractions in 30 patients. The traditional incision was performed distal to the second molar in the center of the tuberosity, followed by a buccal releasing incision. After the tooth extraction, the wound was secured by sutures. The new technique consists of an oblique incision from the distal palatal aspect of the tuberosity towards the buccal aspect of the second molar. After the tooth extraction, cyanoacrylate glue was used on the wound. Lower pain was reported by patients at the site treated with the new technique (p < 0.01). Edema, postsurgical bleeding, and hematoma were similar in both groups. The surgical time was shorter for the new technique (p < 0.01). The new technique applied for the extraction of impacted maxillary wisdom teeth reduced postsurgical pain and the duration of surgery.

Causes and Patterns of Dental Extraction in Dental College of Sebha University

Objectives: This study aimed to identify the primary cause of permanent teeth extraction among patients attending the Oral and Maxillofacial Surgery (OMFS) department of dental college, Sebha University, and its correlation with age, gender, and tooth type. Methods: A cross-sectional study was conducted over ten months; and included 509 patients aged 16-90 years, who underwent tooth extraction. Variables studied were the patient's age, gender, tooth type, and extraction cause. SPSS was used for data analysis, and Chi-Square and ANOVA tests were used to evaluate variables associated with the cause of tooth loss. A p-value of less than 0.05 was considered statistically significant. Results: Overall, 509 permanent teeth were extracted, males (62.1%) and females (37.9%). The primary reasons for tooth extraction were dental caries (76.62%), mobility (10.80%), prosthodontics (6.86%), orthodontics, and impaction (2.95%). The most common age group was 36-45 years (24.36%) and 26-35 years (23.38%). The highest percentage of tooth extraction was in the third and first molars (29.1% and 24.4%, respectively), and the lateral incisor (1.77%) was the lowest. There was an insignificant association between the cause of extraction and gender; a significant association between the cause of extraction and age p&lt;0.001; and a significant association between (gender and age) with tooth type p&lt; 0.001. Conclusion: dental caries was the main reason for tooth extraction in OMFS department, dental college, Sabha University.

NKUT: Dataset and Benchmark for Pediatric Mandibular Wisdom Teeth Segmentation.

Germectomy is a common surgery in pediatric dentistry to prevent the potential dangers caused by impacted mandibular wisdom teeth. Segmentation of mandibular wisdom teeth is a crucial step in surgery planning. However, manually segmenting teeth and bones from 3D volumes is time-consuming and may cause delays in treatment. Deep learning based medical image segmentation methods have demonstrated the potential to reduce the burden of manual annotations, but they still require a lot of well-annotated data for training. In this paper, we initially curated a Cone Beam Computed Tomography (CBCT) dataset, NKUT, for the segmentation of pediatric mandibular wisdom teeth. This marks the first publicly available dataset in this domain. Second, we propose a semantic separation scale-specific feature fusion network named WTNet, which introduces two branches to address the teeth and bones segmentation tasks. In WTNet, We design a Input Enhancement (IE) block and a Teeth-Bones Feature Separation (TBFS) block to solve the feature confusions and semantic-blur problems in our task. Experimental results suggest that WTNet performs better on NKUT compared to previous state-of-the-art segmentation methods (such as TransUnet), with a maximum DSC lead of nearly 16%.

Linking patient-reported oral and general health-related quality of life.

The relationship between oral and overall health is of interest to health care professionals and patients alike. This study investigated the correlation between oral health-related quality of life (OHRQoL) and health-related quality of life (HRQoL) in a general adult population. This cross-sectional study used a convenience sample of adult participants (N = 607) attending the 2022 Minnesota County and State fairs in USA, the 5-item Oral Health Impact Profile (OHIP-5) assessed OHRQoL, and the 10-item PROMIS v.1.2 Global Health Instrument assessed HRQoL. Spearman and Pearson correlations were used to summarize the bivariable relationship between OHRQoL and HRQoL (both physical and mental health dimensions). A structural equation model determined OHRQoL-HRQoL correlations (r). Correlations' magnitude was interpreted according to Cohen's guidelines (r = 0.10, 0.30, and 0.50 to demarcate "small," "medium," and "large" effects, respectively). OHRQoL and HRQoL correlated with r = 0.52 (95% confidence interval, CI: [0.50-0.55]), indicating that the two constructs shared 27% of their information. According to Cohen, this was a "large" effect. OHRQoL, and the physical and mental HRQoL dimensions correlated with r = 0.55 (95% CI: [0.50-0.59]) and r = 0.43 (95% CI: [0.40-0.46]), respectively, indicating a "large" and a "medium" effect. OHRQoL and HRQoL were substantially correlated in an adult population. Using OHIP-5 to assess their dental patients' oral health impact allows dental professionals to gain insights into patients' overall health-related wellbeing.