Distance Between the Most Prominent Labial Surface of Maxillary Central Incisors to the Posterior Limit of Incisive Papilla in Various Arch Forms

2019 ◽  
Vol 2 (2) ◽  
pp. 73-77
Author(s):  
Anuj Khanal ◽  
P Parajuli ◽  
SR Niraula ◽  
RK Singh ◽  
P Suwal

Introduction: Arranging artificial teeth has always been a challenging work since edentulous alveolar ridges are in a constant verge of physiological resorptive changes. Incisive papilla is a reliable biometric guide which can be used as a reference for arrangement of anterior teeth, since it is a stable intraoral anatomical landmark unless surgically modified. Objective: This study was conducted to determine the mean distance between the most prominent labial surface of maxillary central incisors to the posterior limit of incisive papilla in various arch forms. Materials and Methods: The study was carried out among 170 undergraduate students of BPKIHS, after obtaining ethical clearance from Institutional Review Committee, BPKIHS. Maxillary impressions were made with alginate impression materials and casts were poured with dental stone. Distance from the posterior limit of incisive papilla to maximum convexity of central incisor (Papillo-Incisal Distance, PID) was measured with a Digital Vernier caliper with a precision of 0.01mm. The arch forms were analyzed and classified into ovoid, tapering and squarish arch, subjectively based on morphological parameters. The intra-examiner reliability of the measurement was tested in 17 casts calculating Cronbach’s Alpha. Pearson Chi-square test was applied to explore the relation of the arch forms with age and gender. One-way ANOVA was used to check the association between the mean PID between with different arch forms.(p value = 0.05) Results: The mean distance from the labial surface of maxillary central incisors to the posterior limit of incisive papilla was 11.58±1.32 mm. The mean papillo-incisal distance varied with respect to different arch forms which was statistically significant (P<0.05). The mean PID of oval, squarish and tapering arch forms were 11.86 mm, 10.82 mm and 11.93 mm respectively. Conclusion: Incisive papilla is a valuable starting point in the preliminary location of maxillary incisors during fabrication of dentures. The suggested mean PID for arranging central incisors is 11.58 mm.

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 609-613
Author(s):  
Reshmi B ◽  
Bhagyalakshmi T ◽  
Arvind S

Anterior tooth fractures are more commonly found in younger patients than in adults. Kids in school accidentally fall and break their anterior tooth. It not only has an impact on aesthetics but physiological disturbances due to their friends. The aim of this study is to assess the gender difference in patients who underwent root canal treatment in anterior teeth after trauma. The data was collected from the dental information archiving software of saveetha dental college, from June 2019 to March 2020. The parameters collected were age, gender, a tooth which had undergone trauma. The data was collected and tabulated in the excel sheet and was transferred to the SPSS software by IBM for statistical analysis like chi-square test between trauma teeth and age and gender and traumatized tooth. This study reveals that males had a higher incidence of fracture than females and they belonged to the age group of 2-4 years with a P-value of 0.213 >0.05 (statistically insignificant).   This study concludes that male children are more prone for anterior tooth fracture than the female children, and they must be educated on the importance of teeth and safety during sporting or any other physical activities.


2011 ◽  
Vol 18 (04) ◽  
pp. 644-648
Author(s):  
TAYYABA SALEEM ◽  
TARIQ ZAMAN AHMAD

Objectives: To compare the influence of various arch forms on papillo-incisal distance PID (distance between posterior limit of the incisive papilla and the most prominent contour of the labial surface of maxillary central incisors). Study design: Descriptive study. Place and duration of study: Department of Prosthodontics, Lahore Medical and Dental College, Lahore, Pakistan, from October 2004-December 2005 & May2010-September2010. Methodology: A total of 250 subjects, 125 male and 125 female were included. Theme of evaluation was incisive papilla maxillary central incisor distance and arch form. Normal healthy subjects with symmetrical arches and all teeth present except third molars were included. Subjects with malformed teeth, periodontal problems, orthodontic treatment or restorations on the labial tooth surfaces were excluded. Data was analyzed in SPSS 16 package by applying t test and ANOVA, with p≤0.05 as cut off point for statistical significance. Results: The mean PID was 12.02mm SD±1.5. Among the subjects 82% had ovoid, 7% had tapering and 11% had squarish arches. Conclusions: Mean PID 12.02mm SD±1.5is suggested for artificial central incisors replacement. There is higher presentation of ovoid arches with a strong influence of arch forms (p-value <0.02) and a weak influence of gender (p-value <0.489) on PID. 


2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Jesús Alberto Luengo - Fereira

Objective: To compare two fluorinated varnishes for the control of white spot lesions.Material and Methods: A randomized controlled clinical trial was conducted. A total of 103 active whitespot lesions on permanent upper anterior teeth from 24 patients, aged 7 to 9 years were randomly assigned totwo groups, G1: Duraphat® (n=52) and G2: DuraShield® (n=51). Weekly applications were perform for fourconsecutive weeks. Fifth week the dimension, regression and activity of the lesions were evaluated. Student’sT test, Wilcoxon Ranks and Chi square were used at 5% significance. Results: At the end of the study, the lesion reduction was observed in 69.7%, finding significant differences(p<0.05) in the mean of the initial and final dimensions in general (2.74 mm to 1.91 mm) and in each group, G1(2.84 mm to 2.03 mm), G2 (2.64 mm to 1.78 mm). In the activity of the lesions, it was found in the G1, 12 active and6 inactive lesions; while in G2, there were 14 active and 29 inactive; these differences were significant (p<0.05). Conclusions: The two evaluated products showed similar clinical efficacy in the remineralization of activewhite spot lesions after 4 weeks of therapy.


Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Alexander J Senetar ◽  
Daniel A Bonnin ◽  
Hannah E Branstetter ◽  
Alexis N Simpkins ◽  

Introduction: Primary care plays an essential role in stroke prevention. Yet still, for many stroke patients, a relationship with a primary care provider (PCP) is not established until after stroke. Our goal was to determine if lack of PCP and the consequential differences in management affects stroke severity. Methods: Data was obtained from our Institutional Review Board approved stroke admission database from 2017 to November 2019 of all stroke subtypes (ischemic stroke, transient ischemic attack, subarachnoid and intracerebral hemorrhages). Non-parametric Mann Whitney t-test and regression analysis was used to identify significant differences in medications, stroke risk factors and stroke severity. Results: A total of 559 patients were included, median age 67 (interquartile range (IQR) 58-76), 49% woman, 32% established care with a PCP, 36% on medications for diabetes mellitus (DM), 42% hyperlipidemia, 66% anti-hypertensives, 39% anti-platelet agents, and 10% anticoagulation. More patients with PCP were taking anti-hypertensive medications (80% versus (vs) 60%, p value < 0.0001), DM medications (56% vs 30%, p value < 0.0001), anti-platelet agents (46% vs 35%, p value = 0.0149), and medications for hyperlipidemia (49% vs 39%, p value = 0.0426). Admission NIHSS was lower in patients with a PCP median 6 (IQR 3-11) vs median 9 (IQR 4 -15), p value= 0.0016, and median hemoglobin A1c was higher in patients with a PCP 8 (IQR 5.7- 9.3) vs patients without a PCP prior to their stroke 6 (IQR 5.4 - 8.5), p value= 0.0002. Admitting systolic blood pressure was similar 155 (137-177) vs 152 (134-171). After correcting for age and gender, regression analysis demonstrated a significant association between whether a patient had PCP and antihypertensive medication use (odds ratio (OR) 2.413, 95% confidence interval 1.511 - 3.914) and hemoglobin A1c (OR 1.122, 95% CI 1.037 - 1.215). Also, patients with a PCP were more likely to have a lower NIHSS on admission (OR 0.9679, 95% CI 0.9423 - 0.9930). Conclusions: These result show that patients not followed by a PCP prior to stroke are less likely to be on medications for primary prevention of stroke, contributing to an increased stroke severity on admission. More research is needed to identify barriers to patients establishing care with PCP.


Objective: This study was carried out to determine the prevalence of microdontia among patients undergoing orthodontic treatment. Materials and Methods: This was a cross-sectional study conducted at Sindh Institute of Oral Health Sciences, (JSMU) from January-2020 to May-2020. Pre-treatment casts were taken of 140 subjects. The mesiodistal dimension of each tooth was recorded through the vernier caliper. Frequency and percentage were calculated for the presence of microdontia. The test applied was Pearson’s Chi-square test to assess the relationship between microdontia and variables like age and gender. P-value <0.05 was taken as statistically significant. Data analysis was performed on SPSS version 22. Results: A total of 140 subjects were selected i.e. 105 (75%) females and 35 (25%) males aged range 13 -30 years with mean age 18.29 ± 3.88. Out of 42, single tooth microdontia was found in 3 (7.1%), more than one tooth microdontia, and generalized microdontia was present in 36 (85.7%) and 3 (7.1%) respectively. Microdontia was found to be more common in the maxilla (n=42, 100%) than the mandible (n=14, 33.3%). It was found more common in females (n=37, 35.2%) as compared to males (n=5, 14.3%). Statistically significant relationship was found among gender and prevalence of microdontia (p=0.019) with a statistically insignificant relationship between age and presence of microdontia (p=0.228). Conclusions: Microdontia was found to be a frequent dental anomaly, was more common in maxilla and females with a significant association with gender.


2020 ◽  
Vol 8 (4) ◽  
pp. 193-199
Author(s):  
Pujan Balla ◽  
Anil Shrestha ◽  
Ninadini Shrestha ◽  
Navindra Bista ◽  
Moda Nath Marhatta

Background: Spinal anesthesia is the preferred technique of anesthesia employed for caesarean sections. However, it is very often complicated by hypotension. Different drugs and techniques have been used to prevent the hypotension induced by spinal anesthesia. In this study, the effect of ondansetron on the prevention of hypotension after spinal anesthesia was evaluated. Objectives: To determine the effect of prophylactic ondansetron on prevention of spinal induced hypotension in elective caesarean section. Methodology: Eighty-six parturients planned for elective caesarean deliveries were randomized into two groups of 43 each. Group O received Ondansetron 4 mg (4 ml) and Group S received Normal Saline (4 ml) intravenously 10 minutes prior to spinal anesthesia. Blood pressure, heart rate, phenylephrine requirements, occurrence of nausea and vomiting and APGAR scores of neonates were compared between the groups. Hemodynamic data was analyzed using Student’s t-test for intergroup comparison and ANOVA was used for intragroup comparison. Categorical data was analyzed using Pearson Chi-Square test. For all determinants, p-value <0.05 was considered significant. Results: Occurrence of hypotension in Group O (20.9 %) was significantly lower than in Group S (72.1%) (p < 0.05). The mean arterial pressure was significantly higher in Group O at 2, 6, 8, 12 and 14 minutes (p < 0.05). The use of phenylephrine (37.21 mcg vs. 146.51 mcg, p < 0.05) and occurrence of nausea (11.6%, vs. 41.9% p < 0.002) was significantly lower in ondansetron group. Conclusion: Ondansetron is effective in preventing spinal induced hypotension in elective caesarean sections.


Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Gloria Kim ◽  
Arati A Gangadharan ◽  
Matthew A Corriere

Introduction: Some approaches to frailty screening use diagnostic or laboratory data that may be incomplete. Grip strength can identify weakness, a component of phenotype-based frailty assessment. We compared grip strength as a reductionist, phenotype-based approach to frailty screening with comorbidity and laboratory-based alternatives. Hypothesis: Grip strength and categorical weakness are correlated with the modified frailty index-5 (mFI-5) and lab values associated with frailty. Methods: Weakness based on grip, BMI, and gender was compared with mFI-5 comorbidities and lab values. Patients with at least 3/5 mFI-5 comorbidities were considered frail. Lab data collected within 6 months of grip measurement was assessed. Associations were evaluated using multivariable models and kappa. Methods: 2,597 patients had grip strength measured over 5 months. Mean age was 64.4±14.6, mean BMI was 29.5±6.9;46% were women, and 87% white. Prevalent comorbidities included hypertension (28%), CHF (22%), diabetes (29%), and COPD (26%); 9% were functionally dependent. 34% were weak, but only 13% were frail based on mFI-5. Hemoglobin, creatinine, and CRP differed significantly based on weakness ( Table ). Laboratory data were missing for 36%- 95% of patients. Multivariable models identified significant associations between weakness, hemoglobin, and all MFI-5 comorbidities. Categorical agreement between weakness and frailty was limited (kappa =0.09; 95% CL 0.0641-0.1232). Conclusion: Weakness based on grip strength provides a practical, inexpensive approach to risk assessment, especially when incomplete data excludes other approaches. Comorbidity-based assessment categorizes many weak patients as non-frail. Table. Demographic, laboratory values, and comorbidities by categorical weakness based on grip 20 th percentile. Mean values for continuous variables by weakness adjusted for gender and BMI, p-value for T-test; frequency and total percent for categorical variables, p-value represents chi-square test.


2007 ◽  
Vol 17 (5) ◽  
pp. 487-498 ◽  
Author(s):  
Birna Bjarnason-Wehrens ◽  
Sigrid Dordel ◽  
Sabine Schickendantz ◽  
Constanze Krumm ◽  
Daniel Bott ◽  
...  

AbstractTheir perceptual and motor experiences determine the physical and motor development of children, and impact also on their emotional, psychosocial, and cognitive development. Our aim, therefore, was to evaluate motor development in children with congenitally malformed hearts compared to their healthy peers.We compared 194 children, with a mean age of 10.0 years, and standard deviation of 2.7 years, representing the entire spectrum of congenital cardiac disease, to a control group of 455 healthy children, having a mean age 9.6 years, with standard deviation of 2.17 years. The bodily coordination test for children was used to examine motor development.Of the children with congenitally malformed hearts, 26.8% showed moderate, and 31.9% had severe disturbances of motor development, compared to 16.5% and 5.5% of the control group, the p-value for these differences being less than 0.001. The mean motor quotient adjusted for age and gender was lower in the children with congenitally malformed hearts than in their healthy peers, at 79.6, with standard deviation of 18.9 as opposed to 96.6, with standard deviation of 15, this difference having a p-value of less than 0.001. Depending on the presence, and/or the degree, of residual sequels, the children with congenitally malformed hearts were divided into two subgroups, with either no or mild residual sequels, or with significant sequels. The mean motor quotient was lower in those with significant residual sequels, at 75, with standard deviation of 19.3, as opposed to 83, with standard deviation of 17.9, the p-value for this difference being less than 0.01. In both subgroups, the mean motor quotient was lower, with a p-value of less than 0.01, than in the control group.Our findings show that children with congenitally malformed hearts have deficits in their motor development, these being found in the presence of no or mild sequels, as well as with significant residual sequels. Parental overprotection may contribute to these findings.


Author(s):  
Fasoranti Afolabi Joseph

Background: Hepatitis B, which is caused by the Hepatitis B virus (HBV), is a global health problem that has resulted in high morbidity and mortality with knowledge and awareness about the occurrence and mode of transmissions relatively low among the populace. Therefore, this study examined knowledge on the mode of transmission and preventions of hepatitis B among undergraduate students in Lagos, Nigeria. Methods: The cross-sectional descriptive research was used, and a multi-stage sampling technique was adopted to select three hundred respondents which comprised male and female from three tertiary institutions in Lagos state in 2019. Hepatitis B Knowledge Questionnaire with a reliability index of 0.74 was used for data collection. The descriptive statistics of frequency count and percentages was used to analyse the demographic characteristics of respondents while the chi-square test was used to determine associations between categorical variables Results: The results revealed that a high proportion of the respondents had poor knowledge about the transmission and prevention of hepatitis B.. The result revealed that the p-value ≤ 0.05 was considered statistically insignificant. Therefore, the study revealed that there is no significant relationship between gender and hepatitis B Conclusion: A critical level of public awareness and vaccination coverage, particularly among students, is essential to decrease Lagos' burden.


2020 ◽  
Vol 11 (SPL4) ◽  
pp. 720-725
Author(s):  
Ashwin Shravan Kumar M ◽  
Revathi Duraisamy

Tooth preparation is done in the treatment of fixed partial dentures. It is necessary to obtain a good amount of gingival retraction for accuracy in marginal positioning of prosthesis. The aim of this study is to evaluate the efficiency of gingival retraction by mechanical and chemico mechanical methods. A retrospective data collection was done by reviewing 86000 case sheets from Saveetha dental college. Study period was about 10 months. Inclusion criteria & exclusion criteria were available. Parameters were tabulated and analysed using SPSS software. There were 899 patients treated for fixed partial dentures in the study period. Among these, 398 were males and 501 were females. Chi square t test was performed and p value was found to be 0.02  and the results are significant as p value is <0.05. Also, 95% of both the population irrespective of age and gender underwent mechanical method of gingival retraction. This study is in consensus with existing literature that gingival retraction can be efficiently obtained through the mechanical method. Whether systemic health issues or socioeconomic reasons played a role in the acceptance of choice of treatment needs to be further evaluated with larger sample size and multicentre studies among our population.


Sign in / Sign up

Export Citation Format

Share Document