Pertinence of Five Different Regression Equations of Mixed Dentition Analysis in West Godavari District Children: A Comparative Study.

Aim and background: The orthodontic diagnosis and treatment planning are the fundamental goals during the mixed dentition period. Numerous methods have been proposed to date. The study was designed to determine the mesiodistal (MD) widths of the lower permanent canines and premolars from Tanaka and Johnston, regression equation (RE) proposed for north Indian population (RE-NIP), Bernabé and Flores-Mir C, Moyers', and Ling and Wong mixed dentition analysis (MDA) and to determine the correlation coefficients for the Eluru population. Materials and methods: The study population was selected using cluster random sampling. A total of 3,572 children were clinically examined from the Outpatient Department of Pediatric and Preventive Dentistry, St Joseph Dental College and Hospital, Eluru district, Andhra Pradesh. Out of these, 140 children aged 11-16 years were randomly selected for the study based on the inclusion and exclusion criteria. The MD width of permanent incisors, canines, premolars, and molars was measured with the help of a digital vernier caliper; summed up and compared with the above-mentioned REs. The data obtained were subjected to statistical analysis using SPSS version 22, employing Student's t-test, Pearson correlation coefficient, and Kruskal-Wallis test. Results: The RE-NIP underestimated the values, whereas the remaining equations overestimated the sum of permanent canines and premolars in both arches in the study population. Conclusion: The predicted values obtained from the abovementioned methods overestimated the actual values, and a new RE for the Eluru population should be suggested to better represent the size of unerupted canines and premolars. Clinical significance: Measuring the MD widths of the upper and lower permanent incisors and molars during the mixed dentition period from different REs will help a pedodontist in proper treatment planning to predict the MD width of unerupted canines and premolars. How to cite this article: Kanaparthi S, Done V, P Madu GS, et al. Pertinence of Five Different Regression Equations of Mixed Dentition Analysis in West Godavari District Children: A Comparative Study. Int J Clin Pediatr Dent 2024;17(8):871-876.

A 5-year comprehensive evaluation of maxillofacial injuries in polytrauma patients at a tertiary hospital - an epidemiological study.

OBJECTIVES: To report and analyze the pattern of maxillofacial injuries in trauma victims and to define the role of a maxillofacial surgeon in an emergency trauma care team. MATERIALS AND METHODS: Trauma patients reported and reporting to the casualty of a tertiaryhospital with facial injuries and other suspected concomitant injuries in the body were included in this study. The complete medical and radiographic records of each patient were reviewed and data was collected in a standard proforma in this 5-year clinical study (3 year of retrospective and 2 year of prospective study). The complete data related to the facial injuries and associated systemic trauma was recorded and statistical analysis conducted. RESULTS: A total of 18,369 patients with trauma were admitted to the hospital from May 2018 to April 2023. Out of these, 11,277 (61.4%) were males and 7,092 (38.6%) were females. Seventy percent of the reported cases with trauma were in the age group of 14-40 years. The incidence of trauma during the monsoon season was highest (n = 7,927, 43%). The commonest etiological factor leading to trauma was road traffic accident (n = 4,510, 40%). Among facial injuries, the mandibular fractures (n = 1,821, 41%) were predominant. CONCLUSIONS: The management of polytrauma patients should be undertaken by a team of specialists which should include a maxillofacial surgeon as facial injuries were common. This data is essential in developing and assessing the preventative strategies aimed at decreasing the frequency of facial and other injuries.

Examining the Impact of the COVID-19 Vaccine on Smokers and Diabetic Individuals: Unveiling the Efficacy and Unraveling Side Effects in Al Jouf Region, KSA.

BACKGROUND: The assessment of the side effects of the COVID-19 vaccine is crucial to inform individuals about the potential risks and benefits of vaccination and to provide appropriate medical care if necessary. The study aimed to assess the effect of the COVID-19 vaccine on smokers and diabetic individuals and to investigate the occurrence of any side effects in the subpopulation of the Al Jouf region, KSA. MATERIALS AND METHODS: The questionnaire had three main sections: the first covered basic information including gender, age, general health status, place, socio-economic position, nationality, smoking, and diabetes. Section 2 included the COVID-19 vaccination status and side effects, and the third section dealt with the dental history. Informed consent was obtained from the recruited individuals. Participants completed a Google self-administered questionnaire. RESULTS: One hundred and twenty participants responded to the survey forms. Similarly, for diabetics versus non-diabetics, there was no statistically significant difference in the type of vaccine received (chi-square value = 3.125, p-value = 0.682). For smokers versus non-smokers, the chi-square test showed a non-significant difference in side effects (chi-square = 2.56, p-value = 0.109), indicating that there was no significant difference in the side effects experienced by smokers and non-smokers. For diabetics versus non-diabetics, the chi-square test showed a non-significant difference in side effects (chi-square = 0.34, p-value = 0.560), indicating that there was no significant difference in the side effects experienced by diabetics and non-diabetics. CONCLUSION: Smokers and diabetics had higher harmful effects than non-smokers and non-diabetics. These findings need larger, robust trials to support treatment decision-making.

Assessment of Bite Forces in Restored Teeth with Different Commonly Used Restorative Materials: A Comparative Study

ABSTRACT Objective: To evaluate and compare bite force (BF) in permanent first molars restored with glass ionomer cement (GIC), composite and amalgam, and normal contralateral permanent first molars. Material and Methods: BF was recorded in decayed permanent first molars, which were filled with GIC (n=30), composite (n=30), and amalgam (n=30), and in healthy contralateral first molars (n=90) with Force Transducer Occlusal Force Meter and compared. Results: BF was significantly higher in normal teeth on the contralateral side compared to teeth restored with GIC and composite. However, in patients with amalgam restoration, though it was less compared to that on the contralateral side, it was not statistically significant (p>0.05). Conclusion: Restoring teeth with various filling materials may improve bite force. In the present study, it was found that the teeth restored with amalgam had higher bite forces in comparison to the other restorative materials used. However, it was not comparable to that observed in the normal tooth (control) on the contralateral side.

Comparative Evaluation of Osseodensification Versus Conventional Osteotomy Technique on Dental Implant Primary Stability: An Ex Vivo Study.

Purpose One of the commonest treatment options for replacing missing teeth is a root-form implant. Clinically, the key mechanical factor in achieving success is primary stability. This ex vivo study aims to evaluate whether osseodensification method will achieve good primary stability or the conventional drilling protocol. Methods Fresh iliac bone of the sheep was selected similar to D3 and D4 bone densities. A total of 22 osteotomy sites were prepared in the bone sample, of which 11 were prepared by osseodensification method (test group) and other 11 by conventional undersized drilling (control group). Primary stability was measured using insertion torque (IT), resonance frequency analysis (RFA), and reverse torque values (RTVs) by measuring implant stability quotient (ISQ). The recorded data were statistically analyzed using Statistical Package for the Social Sciences (SPSS) Version 22.0. The differences between groups were compared using the Mann-Whitney U test and independent t-test. The Pearson correlation coefficient test was performed to measure the linear relationship between two variables. The statistical significance level was established at p<0.05. Results When the correlation among IT, RTV, and ISQ was measured, a statistically significant correlation between IT and RTV (p=0.001) and between IT and ISQ (p=0.0001) was observed. A statistically significant (p=0.014) correlation between RTV and ISQ was also found. Conclusion Osteotomy prepared by osseodensification method showed higher IT, RTV, and ISQ values than the conventional undersized group.

Shade Selection in Esthetic Dentistry: A Review.

When fabricating a restoration, patient satisfaction with the shade match is essential. The patient's level of satisfaction may not be the same as that of the dental practitioner. Esthetic expectations have dramatically increased in the last few years. Color and shade determination are generally considered difficult in dental practice. Most prostheses fail esthetically owing to improper shade selection. A good understanding of color shade guides is essential for precise shade matching, but the paucity of dental practitioners' knowledge of color science because of the numerous available shade guides creates a challenge. This comprehensive review sheds light on shade selection, different shade guides, and shade matching devices commonly used in dental practice. Studies published in PubMed/MEDLINE, ScienceDirect, Scopus, and Dentistry and Oral Science Source from the past 15 years were included.

The Influence of Thermal Curing Cycles on the Color Stability of Unfilled Polymethyl Methacrylate Teeth.

PURPOSE: The purpose of this study was to evaluate the influence of water bath polymerization cycles on the color stability of unfilled polymethyl methacrylate (PMMA) teeth. MATERIALS AND METHODS: A total of 72 samples of unfilled PMMA were divided into two groups. Group 1 was subjected to a short curing cycle and group 2 to a long thermal curing cycle. Color measurements were done using a spectrophotometer and evaluated by the Commission Internationale de l'Eclairage (CIE) L*a*b* color system. Color difference (∆E) was calculated before and after thermal curing cycles and the data were statistically analyzed. RESULTS: Group 2 teeth exhibited the highest ΔE values and color change to long curing cycle with significant difference between them. CONCLUSION: All the ΔE values were below 3.3, indicating that the color changes are not clinically perceptible.

Assessment of caries diagnostic thresholds of DMFT, ICDAS II and CAST in the estimation of caries prevalence rate in first permanent molars in early permanent dentition-a cross-sectional study.

BACKGROUND: The actual burden of dental caries prevalence varies with the caries assessment tool used. Therefore, the present study evaluated the caries diagnostic potentials of Decayed, Missing and Filled Teeth (DMFT); International Caries Detection and Assessment System (ICDAS) II and Caries Assessment Spectrum and Treatment (CAST) indices in estimating the caries prevalence rate of first permanent molar (FPM) in Saudi male children aged 7-9 years. METHODS: This descriptive, cross-sectional study included 390 children by multistage stratified cluster sampling method in Al-Jouf Province, Saudi Arabia. The prevalence rates of FPM caries were determined by DMFT, ICDAS II and CAST indices at various diagnostic cut-off points. Intra- and inter-examiner reliability was determined. RESULTS: The prevalence rates of FPM caries determined by DMFT (decayed), ICDAS II (codes 1-6) and CAST (codes 3-7) were 64.4% (61.6-67.2), 71.5% (69.2-73.2) and 71.0% (68.7-73.3), respectively. The prevalence rates of FPM caries determined by ICDAS II at various diagnostic cut-offs were as follows: 'sound' (code '0'), 28.5% (26.3-30.8); 'enamel caries' (codes 1-3), 57.2% (54.7-59.7) and 'dentinal caries' (codes 4-6), 14.3% (12.6-16.1). Similarly, the prevalence rates estimated by CAST at different diagnostic cut-off points were: 'healthy' (scores 0-2), 28.1% (25.9-30.4); 'premorbid' (score 3, enamel carious), 56.5% (54.0-59.0); 'morbid' (scores 4-5, cavitated carious dentin), 7.9% (6.6-9.3); 'severe morbidity' (scores 6-7, pulp exposure/fistula/abscess), 6.6% (5.4-8.1) and 'mortality' (score 8, lost), 0.8% (0.4-1.4). CONCLUSION: Enamel caries lesions were found in more than half of the FPMs investigated in the current study. CAST index is preferable because it detects the complete spectrum of caries. ICDAS II at codes 1-6 and CAST at codes 3-7 projected similar caries prevalence rates in FPMs.

Digital assessment of marginal accuracy in ceramic crowns fabricated with different marginal finish line configurations.

AIM: To digitally evaluate the marginal adaptation of different types of all-ceramic crowns on two different marginal configurations such as Shoulder and Chamfer of the prepared teeth. METHODS: The marginal fit of the crown specimens on the model of the prepared teeth were assessed using the dual scan replica technique. Two plastic teeth were prepared; one having a Shoulder finishing line (A), while the other with a Chamfer finish line (B). Three types of different all-ceramic crowns, layered zirconia, monolithic zirconia, and pressed lithium disilicate, were fabricated for each prepared tooth (A) and (B). Measurements for assessing the marginal discrepancy were done on four designated points on the mesial, distal, buccal, and palatal surface of the superimposed image. RESULTS: The average marginal gap was the largest in the layered zirconia group, followed by monolithic zirconia, while pressed lithium disilicate crowns showed the least marginal gaps. Crowns with Chamfer finish lines were better fitting (less marginal gap) than the shoulder finish lines across all the groups. CONCLUSIONS: Chamfer finish lines produced better fitting restorations, and heat-pressed lithium disilicate crowns showed better adaptation at the margins than both layered zirconia and monolithic zirconia.

Knowledge, Attitude and Practices Regarding Consumption of Carbonated Soft Drinks Among the Dental Students: A Cross-Sectional Study

Abstract Objective: To assess and evaluate the knowledge, attitude, and practices regarding the consumption of carbonated drinks among dental students. Carbonated drinks are pervaded by carbon dioxide and have more adverse effects since they are acidic in nature. Nowadays, these are consumed more widely globally, causing many systemic diseases; diabetes and obesity are common. Material and Methods: This study includes 204 individuals belonging to the age group of 18-26 years. A self-structured objective type cross-sectional questionnaire survey was conducted to assess the knowledge, attitude, and practice of dental students regarding carbonated drinks. The participants were instructed to mark the most appropriate correct answer from the given list of close-ended type questions. Results: Of 204 dental students, the study population includes 125 female and 79 male students. 98.5% of the students knew about carbonated drinks, while 1.5% were unaware. Conclusion: Most participants preferred to have carbonated drinks even with their awareness about the ill effects of these drinks. Possible implications by the government authorities may probably increase awareness among the population (AU).

Evaluation of Stress Distribution and Force in External Hexagonal Implant: A 3-D Finite Element Analysis.

PURPOSE: To analyze the stress distribution and the direction of force in external hexagonal implant with crown in three different angulations. MATERIALS AND METHODS: A total of 60 samples of geometric models were used to analyze von Mises stress and direction of force with 0-, 5-, and 10-degree lingual tilt. Von Mises stress and force distribution were evaluated at nodes of hard bone, and finite element analysis was performed using ANSYS 12.1 software. For calculating stress distribution and force, we categorized and labeled the groups as Implant A1, Implant A2, and Implant A3, and Implant B1, Implant B2, and Implant B3 with 0-, 5-, and 10-degree lingual inclinations, respectively. Inter- and intra-group comparisons were performed using ANOVA test. A p-value of ≤0.05 was considered statistically significant. RESULTS: In all the three models, overall maximum stress was found in implant model A3 on the implant surface (86.61), and minimum was found on model A1 in hard bone (26.21). In all the three models, the direction of force along three planes was maximum in DX (0.01025) and minimum along DZ (0.002) direction with model B1. CONCLUSION: Maximum von Mises stress and the direction of force in axial direction was found at the maximum with the implant of 10 degrees angulation. Thus, it was evident that tilting of an implant influences the stress concentration and force in external hex implants.

Association of oral hygiene practices with the outcome of untreated dental caries and its clinical consequences in pre- and primary school children: A cross-sectional study in a northern province of Saudi Arabia.

OBJECTIVES: To assess the association amongst oral hygiene practices, untreated dental caries (UDC) and clinical consequences of UDC in pre- and primary school children aged 3-5 and 6-7 years. MATERIALS AND METHODS: A total of 250 subjects were recruited. The demographic and oral hygiene data were collected using a closed-ended questionnaire. The UDC was measured using the 'd/D' component of the decayed, missing, filled teeth (dmft/DMFT) index, and its clinical consequences were recorded using the 'p/P' component of the pulpal involvement, ulceration, fistula and abscess (pufa/PUFA) index. The data were analyzed by multiple logistic regression. RESULTS: Overall, 94.2% and 56.5% of the participants had one or more UDC and pulp involvement (p ≥ 1), respectively in 3-5-year-old age group. In the 6-7-year- age group the prevalence of UDC was 26.7% and the pulp involvement was 11.6%. Children who brushed with their fingers were 4.7 times more likely to have UDC (crude odds ratio [COR] = 4.71; 95% CI: 1.21-18.40). Twice-daily brushing resulted in a 39% (p = 0.732) lower likelihood of having UDC compared with once-daily brushing (COR = 0.61; 95% CI: 0.04, 10.09). Children with irregular brushing frequency were 3.2 times more likely to have pulpal involvement (COR = 3.21; 95% CI: 1.74-5.93). CONCLUSION: Finger brushing, irregular frequency of brushing and lack of parental supervision whilst brushing were associated with UDC and its consequences.

Periodontal Clinical Parameters as a Predictor of Bite Force: A Cross-Sectional Study.

OBJECTIVE: To investigate the correlation of periodontal parameters and bite force in different stages of periodontitis after phase I periodontal therapy. METHODS: Periodontal clinical parameters such as mobility, attachment loss, gingival recession, and percentage of bone remaining were recorded at the mandibular first molar region after phase I therapy in subjects categorized according to the stage of periodontitis. Corresponding bite force was recorded at the first mandibular molar region using a bite force device after phase I therapy. ANOVA test was used to assess the significant difference among different groups. Pearson correlation coefficient was used to assess the correlation between measured variables. RESULTS: The ANOVA test represents that there is no statistical significant difference between the bite force in stage I, stage II, and stage III type of periodontitis. A strong positive correlation was found (r = 0.537) between bite force and percentage of remaining alveolar bone support whereas negative correlation was observed in measured parameters such as mobility (r = -0.0181), attachment loss (r = -0.608), and gingival recession (r = -0.435). CONCLUSION: Among all periodontal clinical parameters, the percentage of remaining alveolar bone is the strong predictor of bite force and mobility; attachment loss and gingival recession cannot predict the bite force in the first molar region. Bite force is variable in different stages of periodontitis.

Alteration in Serum Lipid Profile Pattern in Oral Squamous Cell Carcinoma and Potentially Malignant Disorders

ABSTRACT Objective: To evaluate and compare lipid profile level in oral submucous fibrosis (OSMF), oral leukoplakia (OL) and oral squamous cell carcinoma (OSCC) patients. Material and Methods: Thirty histopathologically diagnosed subjects each of OL, OSMF, OSCC were recruited along with 30 healthy controls. 5ml of venous blood is collected and estimated using standard diagnostic kits. Results: The mean of Total cholesterol level in controls was 219.03 mg%, in OSCC, OL and OSMF was 142.89 ± 10.21mg%, 155.44 ± 17.63 mg% and 180.60 ± 13.25 mg%, respectively. The mean low-density lipid level in controls was 137.24 mg and in OSCC, OL and OSMF groups were 109.28 ± 2.16 mg%, 126.63 ± 0.85 mg% and 119.15 ± 0.93 mg%, respectively. The mean of high-density lipid level in controls, OSCC, OL and OSMF was 42.87 ± 0.42 mg%, 36.50 ± 2.31 mg%, 21.13 ± 0.77 mg% and 28.37 ± 1.11mg%, respectively. The mean of very low density lipids level in controls, OSCC, OL and OSMF was 30.12 ± 1.51 mg%, 17.24 ± 0.80 mg%, 22.25 ± 0.93 mg% and 25.89 ± 0.43 mg%, respectively. The mean triglyceride level in controls, OSCC, OL and OSMF was 118.80 ± 9.47 mg%, 91.2 ± 3.03 mg%, 105.05 ± 2.96 mg% and 106.19 ± 3.09 mg%, respectively. Conclusion: Lipid profile levels could be early indicators of precancer and cancer.

Comparison of Primary Stability of Implants Installed by Two Different Methods in D3 and D4 Bone Types: An In Vitro Study.

OBJECTIVE: The purpose of the study is to assess the method of implant insertion in D3 and D4 bones and influence of insertion torque for achieving better primary implant stability. MATERIALS AND METHODS: A total of 32 specimens (wood blocks) simulating D4 and D3 bone were grouped into 1, 2, 3, and 4. In groups 1 and 3, the implant and abutment were placed by manual method while in groups 2 and 4 by motor-driven method. The osteotomy site was prepared as per the protocol for soft bone, and implants were placed till the implant platform was in flush with the surface of the block. After achieving a standard insertion torque of 40 N.cm, pullout test was carried out with a universal testing machine and results were analyzed by one-way analysis of variance. RESULTS: An intergroup comparison of peak loads revealed an overall statistically significant difference (P < 0.0001) with a mean of 442.638 N, maximum in group 4 and least (202.963 N) in group 1. The mean elongation break was found to be maximum in group 3 samples (81.67600%) and less in group 4 (37.15113%). Intergroup comparison of Young's modulus was statistically significant (P < 0.0001) with a mean value found to be minimum among group 1 samples (597.54750 MPa) and maximum in group 2 (1056.76463 MPa). An intergroup comparison of yield points was found to be maximum among group 4 samples (16.17238MPa) and least in group 1 (5.77438MPa). CONCLUSION: The D3 bone sample provided greater primary stability of implant than D4 bone samples, and the motor-driven implant seemed to have improved stability than that placed manually.

Oral Health-Related Quality of Life (OHRQoL) in Patients with Dental Prosthesis

Abstract Objective: To determine the Oral Health-Related Quality of Life (OHRQoL) for post-treated fixed dental prostheses in selected sample of patients. Material and Methods: 120 patients treated with fixed dental prostheses, either single crowns or fixed partial dentures in maxillary or mandibular arches were asked to express their views about their quality of life. Patients' files were randomly selected from the archives of Department of Prosthetic Dental Sciences, College of Dentistry, Jouf University, Saudi Arabia. For this purpose, a self-structured questionnaire was prepared and their responses recorded. The responses were categorized on a 5 point scale and frequencies calculated. Results: Of 120 patients approached, 79 responded with the mean age group of 37 years. From the survey, it was noted that only three variables were statistically significant, those relating to the importance of natural teeth over fixed prostheses (p=0.046), the ability to chew all kinds of foods (p=0.021) and satisfaction with the occlusion (p<0.001). Conclusion: Oral health remains important, which directly or indirectly is related to many systemic diseases. In the present study, the majority of patients were satisfied with the treatment given.

Osteoporosis: Its Prosthodontic Considerations - A Review.

Osteoporosis is a disease of bone which is common in middle aged post-menopausal women. The osteoporotic bones will become weak and are prone to fractures. Osteoporosis means "porous bone" is a "silent disease". Healthy bone microscopically appears like a honeycomb but, in osteoporotic patients the spaces are much bigger. The osteoporotic bone will have less density or mass and the structure of bone tissue is abnormal. As the bone becomes less dense, they become weaker and more likely to fracture. Women are four times more likely to develop osteoporosis than men. Oral health maintenance for adults with osteoporosis is important. Bone weakness and loss may also affect the ridges that hold dentures resulting in poor fitting dentures. The patients require new dentures more often than those who have strong, healthy bones. Best way to handle problems is avoid delaying or postponing the dental treatment. Regular dental visits and healthy lifestyle is necessary in strengthening and maintenance of good bone health. Well balanced diet with high amounts of vitamin-D & calcium with regular physical activity is recommended.

Acrylic finger prosthesis: a case report.

Hands basic function is to grasp, hold and manipulate items. Hand gesture is perhaps the most blatant example of non-verbal communication. Finger and partial finger amputations are most frequently encountered forms of partial hand loss. Common causes are traumatic injuries, congenital absence or malformations present great clinical challenges. In addition to immediate loss of grasp strength, finger absence may cause marked psychological trauma. Individuals who desire finger replacement usually have high expectation for the appearance of prosthesis. This clinical report portrays simple method to retain acrylic finger prosthesis.