Radiographic evaluation of cervical spine of subjects with temporomandibular joint internal disorder

Although the etiopathophysiology of internal temporomandibular joint internal disorders (TMJ ID) is still unknown, it has been suggested that head and body posture could be related to its initial onset, development and perpetuation. The purpose of the present study was to observe the relationship between cervical spine X-ray abnormalities and TMJ ID. This investigation evaluated 30 subjects with internal TMJ disorder symptoms (test group) and 20 healthy subjects (control group). Subjects were submitted to clinical and radiographic evaluation. Clinical evaluation comprised anamnesis and stomatognathic system physical examination. Radiographic evaluation comprised analysis of lateral cervical spine X-rays by three physical therapists and tracing on the same im ages. The test group presented twice as much cervical spine hyperlordosis as the control group (20.7% versus 10.5%), but almost half of rectification prevalence (41.4 versus 79.0%, p = 0.03). After that, the test group was divided into three subgroups according to TMJ dysfunction severity, evaluated by Helkimo's index. These subgroups were not significantly different, but the subgroup with more severe TMD showed a tendency to cervical spine hyperlordosis prevalence. Results showed a tendency for subjects with more severe TMD to exhibit cervical spine hyperlordosis. Nevertheless, studies with a larger number of subjects suffering from severe TMD are encouraged in order to corroborate the present findings.

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Clinical and Radiological Evaluation of Marginal Bone Loss around Dental Implants Restored with Zirconium vis-à-vis Porcelain Fused to Metal: An In Vivo Study

Dental Journal of Advance Studies ◽

10.1055/s-0040-1709094 ◽

2020 ◽

Vol 08 (01) ◽

pp. 17-21

Author(s):

Udey Singh Wirring ◽

Tarun Kalra ◽

Manjit Kumar ◽

Ajay Bansal ◽

Aquib Javaid

Keyword(s):

Bone Loss ◽

Dental Implants ◽

Test Group ◽

Radiographic Evaluation ◽

Control Group ◽

Marginal Bone Loss ◽

Zirconia Crowns ◽

Bone Level ◽

The Difference

Abstract Introduction Marginal bone level is the criterion for implant success. Patient expectations for more natural looking implant restorations created the need to restore implants with more esthetically pleasing materials like Zirconia rather than conventional porcelain-fused to-metal (PFM) crowns. The aim of this study was to evaluate marginal bone loss around dental implants clinically and radiographically when restored with Zirconia and PFM prosthesis. Materials and Methods Two groups (control and test) were formed with 14 patients each. In the control group, the subjects were rehabilitated with PFM crowns and in the test group, the subjects were rehabilitated with Zirconia crowns. Rehabilitation was done after the healing period of 3 months. Radiographic evaluation was done at regular (baseline, 3rd, 6th, and 12th month) intervals. Results The results were statistically analyzed. Keeping in mind the limitations of the study, it was revealed that the difference in the crestal bone resorption in both the groups was not significant.

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A Study on the Influence of Multi-Teaching Strategy Intervention Program on College Students’ Absorptive Capacity and Employability

Frontiers in Psychology ◽

10.3389/fpsyg.2021.631958 ◽

2021 ◽

Vol 12 ◽

Author(s):

Michael Yao-Ping Peng ◽

Lin Wang ◽

Xiaoyao Yue ◽

Yan Xu ◽

Yongjun Feng

Keyword(s):

Student Learning ◽

Absorptive Capacity ◽

Intervention Strategy ◽

Problem Based Learning ◽

Test Group ◽

University Education ◽

Future Research ◽

Control Group ◽

Learning Abilities ◽

The Relationship

Student employability is a key aspect of any university degree. The relationship between high student learning outcomes and high employability is a problem that needs to be addressed and improved by colleges and universities. Students with high employability can find good jobs after graduation and perform well in the workplace. Employability is associated with the success of university education, thus giving the university a good reputation. This study explores the development of employability, alongside teaching and student learning abilities to examine how these variables affect student employability. The study collected 442 responses to a questionnaire to investigate the relationship between pedagogy for employability, problem-based learning, absorptive capacity, and student employability based on a structural model. The SEM results show that pedagogy for employability and problem-based learning positively correlate to absorptive capacity; pedagogy for employability and absorptive capacity positively correlate to student employability. We then analyzed a case study teaching intervention strategy with 221 students from the school of management and discuss the differential results of all variables. Results showed that the test group was superior to the control group in each variable performance, indicating that the intervention strategy proved effective. Based on these findings, this study proposes suggestions for future research.

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The Association of the One-Abutment at One-Time Concept with Marginal Bone Loss around the SLA and Platform Switch and Conical Abutment Implants

Journal of Clinical Medicine ◽

10.3390/jcm11010074 ◽

2021 ◽

Vol 11 (1) ◽

pp. 74

Author(s):

Nasreen Hamudi ◽

Eitan Barnea ◽

Evgeny Weinberg ◽

Amir Laviv ◽

Eitan Mijiritsky ◽

...

Keyword(s):

Bone Loss ◽

Test Group ◽

Mucosal Barrier ◽

Control Group ◽

X Rays ◽

Marginal Bone Loss ◽

Bone Level ◽

The Difference ◽

The One

Objectives: Repeated abutment disconnection/reconnection may compromise the mucosal barrier and result in crestal bone level changes. The clinical significance of this phenomenon is not yet clear, as most studies on this topic are short-term. Therefore, the aim of the present study was to evaluate the influence of abutment disconnections and reconnections on peri-implant marginal bone loss over a medium-term follow-up period. Material and methods: Twenty-one patients (6 men and 15 women) with a mean age 66.23 ± 9.35 year at the time of implant placement were included. All patients who received two adjacent nonsubmerged implants were randomly assigned into one of the two groups: definitive multiunit abutments (DEFs) connected to the implant that were not removed (test group) or healing abutments (HEAs) placed at surgery, which were disconnected and reconnected 3–5 times during the prosthetic phase (control group). Peri-implant marginal bone levels (MBL) were measured through periapical X-rays images acquired immediately after the surgery (baseline), at 4–7 months immediately after prosthetic delivery, and at 1-year and 3-year follow-up visits. Results: No implant was lost or presented bone loss of more than 1.9 mm during the 3-year follow-up; thus, the survival and success rate was 100%. Peri-implant mucositis was noticed in 38.1% DEFs and 41.9% of HEAs at the 3-year follow-up assessment. At the end of 3 years, the MBL was −0.35 ± 0.69 mm for participants in the DEFs group and −0.57 ± 0.80 mm for the HEAs group, with significant statistical difference between groups. Conclusions: Immediate connection of the multiunit abutments reduced bone loss in comparison with 3–5 disconnections noted in the healing abutments 3 years after prosthetic delivery. However, the difference between the groups was minimal; thus, the clinical relevance of those results is doubtful.

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Functional Radiographic Examination of the Cervical Spine in Patients with Post-Traumatic Headache

Cephalalgia ◽

10.1046/j.1468-2982.1990.1006295.x ◽

1990 ◽

Vol 10 (6) ◽

pp. 295-303 ◽

Cited By ~ 8

Author(s):

Ole Kudsk Jensen ◽

Tummas Justesen ◽

Frank Farsø Nielsen ◽

Kim Brixen

Keyword(s):

Cervical Spine ◽

Negative Correlation ◽

Significant Negative Correlation ◽

Radiographic Examination ◽

Control Group ◽

Segmental Motion ◽

X Rays ◽

Post Traumatic ◽

Ear Symptoms ◽

Visual Disturbances

The segmental extension-flexion motion of the cervical spine and the overall C1–C7 motion were measured on functional X-rays in 19 patients with post-traumatic headache and 19 age-and sex-matched controls. The extension-flexion C1–C7 motion was reduced in patients with post-traumatic headache due to reduced motion in three segments: C2–C3, C5–C6 ( p < 0.05), and C6–C7 ( p < 0.01). In both groups a negative correlation between the C1–C7 motion and age was found, but the regression coefficients were different. Only in the control group could a negative correlation between segmental motion and age be demonstrated. In the patients with post-traumatic headache a statistically significant negative correlation between the log(pain index) and the age-corrected C1–C7 motion was found ( p < 0.04). On the segmental level a negative correlation between the log (pain index) and the age-corrected C1–C2 and C5–C6 motion could be demonstrated ( p < 0.05). Regarding C6–C7 there was a tendency to negative correlation. Furthermore, a negative correlation between the frequency of associated symptoms (dizziness, visual disturbances and ear symptoms) and the age-corrected C5–C6 motion was found. Consequently the decrement of motion primarily affected C2–C3, C5–C6, and C6–C7, whereas the analysis of correlation with pain index indicated C1–C2 and C5–C6 (C6–C7) as the most important segments involved.

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Comparative study of ropivacaine versus dexmedetomidine-ropivacaine combination in transversus abdominis plane block for postoperative pain control in plastic surgery patients undergoing abdominoplasty

International Surgery Journal ◽

10.18203/2349-2902.isj20195400 ◽

2019 ◽

Vol 6 (12) ◽

pp. 4393

Author(s):

Summaira Jan ◽

Tawheed Ahmad ◽

Saima Rashid

Keyword(s):

Test Group ◽

Transversus Abdominis ◽

Control Group ◽

Tap Block ◽

Transversus Abdominis Plane ◽

Rescue Analgesia ◽

Post Operative Pain ◽

Significant Difference ◽

Initial Onset

Background: Requirement of postoperative analgesic medication is decreased by the use of regional nerve blocks. Transversus abdominis plane (TAP) block is an effective way to provide postoperative analgesia in abdominal surgeries. TAP block using ropivacaine alone has not been consistently proven to be effective in alleviating pain after abdominal surgeries. The objective of the study was to compare the combination of dexmedetomidine and ropivacaine to ropivacaine alone in TAP block for abdominoplasty patients. Time to onset of post-operative pain and time interval for need of rescue analgesia were compared.Methods: Sixty ASA (American Society of Anesthesiology) grade I or II patients undergoing abdominoplasty were allocated to two groups with thirty patients in each group. In this randomized, controlled, double-blinded study, the test group received TAP block using 20 ml (100 mgs) 0.5 percent of ropivacaine mixed with 50 µg of dexmedetomidine while as Control group received TAP block with 20 ml (100 mgs) of 0.5 percent of ropivacaine alone. Patient demographics, time to initial reporting of post-operative pain, time to need of first rescue analgesia, quality of pain block and side effects were recorded.Results: Time to initial onset of pain and time to need of first rescue analgesia were significantly longer in the test group than control group. The two groups were similar in demographics and quality of pain block, with no significant difference in side effects.Conclusions: Addition of dexmedetomidine to ropivacaine for TAP block in abdominoplasty patients prolong the time to initial onset of pain and time to need for first rescue analgesia.

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Difference of Success Rates of Mineral Trioxide Aggregate Pulpotomies Performed Both by Undergraduate Dental Students and by an Expert Operator: A Retrospective Study

The Scientific World JOURNAL ◽

10.1155/2017/4385423 ◽

2017 ◽

Vol 2017 ◽

pp. 1-5

Author(s):

Marco Pasini ◽

Maria Rita Giuca ◽

Roberto Gatto ◽

Silvia Caruso

Keyword(s):

Retrospective Study ◽

Clinical Success ◽

Test Group ◽

Dental Students ◽

Radiographic Evaluation ◽

Primary Molars ◽

Control Group ◽

Second Primary ◽

Success Rates ◽

Significance Level

Aim. The aim of this retrospective study was to evaluate the clinical and radiographic success of pulpotomy on primary molars performed by dental students compared to that performed by an expert operator.Methods. The study was conducted on 142 second primary molars in 102 children. The patients were randomly selected from the available records. The test group (treated by dental students) included 51 subjects (28 males and 23 females, mean age:7.2±1) and the control group included 51 children (29 males and 22 females, mean age:7.4±1.2years). After pulpotomy, a clinical and radiographic evaluation after 12 months was performed. Chi-square test and odds ratio were calculated and significance level was set atp<0.05.Results. The success rate was significantly lower, 81.6% (p<0.05), in the test group than in the control group (93%). The test group showed less clinical and radiographic success (86% and 80%, resp.) compared to the control group (97.2% for clinical success and 93% for radiographic success).Conclusions. Pulpotomy with MTA is an effective method that ensures a good percentage of success. The clinical experience of the operator is a contributing factor.

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Standard Correction of Vision Worsens EMG Activity of Pericranial Muscles in Chronic TMD Subjects

Pain Research and Management ◽

10.1155/2020/3932476 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11

Author(s):

Annalisa Monaco ◽

Eleonora Ortu ◽

Mario Giannoni ◽

Pierdomenico D’Andrea ◽

Ruggero Cattaneo ◽

...

Keyword(s):

Visual System ◽

Test Group ◽

Emg Activity ◽

Control Group ◽

Vision Disorders ◽

Stomatognathic System ◽

Vision Correction ◽

Positive Effect

Recent studies showed an evident correlation between the stomatognathic system and the visual system. These results suggest that subjects who are affected by both temporomandibular (TMD) disorders and refractive disorders present with altered control of pericranial musculature tone and higher open-eye electromyographic (EMG) values. The objective of this work was to evaluate the effects of standard vision correction on EMG in subjects suffering from TMD compared with application of the same vision treatments to non-TMD subjects. 40 subjects were enrolled in this study. The test group included 20 myopic subjects and also included patients with TMD. The control group included 20 healthy myopic subjects. All of the participants underwent a complete ocular examination and a sEMG analysis. The results showed that TMD subjects with vision disorders that are corrected with standard glasses present EMG values that are significantly higher than those presented by non-TMD subjects with vision disorders and standard glasses. Infact, in TMD subjects, eye correction did not have a positive effect on the stomatognathic or pericranial musculature.

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The relationship between spinal pain and temporomandibular joint disorders in Korea: a nationwide propensity score-matched study

BMC Musculoskeletal Disorders ◽

10.1186/s12891-019-3003-4 ◽

2019 ◽

Vol 20 (1) ◽

Author(s):

Doori Kim ◽

Seong-Gyu Ko ◽

Eun-Kyoung Lee ◽

Boyoung Jung

Keyword(s):

Propensity Score ◽

Temporomandibular Joint ◽

Strong Association ◽

Spinal Pain ◽

Temporomandibular Joint Disorders ◽

Medical Expenditure ◽

Control Group ◽

Limited Information ◽

Number Of Visits ◽

The Relationship

Abstract Background Patients with temporomandibular joint disorder (TMD) often complain of pain in other areas. Several studies have been conducted on spinal pain in TMD patients, but have contained only limited information. Therefore, this study analyzed the relationship between TMD and spinal pain in greater detail by using nationwide data. Methods A total of 12,375 TMD patients from the Korean National Health Insurance Review and Assessment database were analyzed. Controls were selected using propensity score-matching. The McNemar test, chi-square test, and paired t-test were used to compare the prevalence and severity of spinal pain between cases and matched controls. Logistic regression and linear regression models were used to analyze factors affecting the prevalence and severity of spinal pain in patients with TMD. Results The annual period prevalence of TMD was 1.1%. The prevalence was higher in younger individuals than in individuals of other ages and was higher in women than in men. The medical expenditure for TMD per person was $86. Among TMD patients, 2.5% underwent surgical procedures and 0.3% were hospitalized. The prevalence of spinal pain in patients with TMD was 48%, whereas that in the control group was 34%. Increased severity of TMD was associated with an increased probability of spinal pain. The medical expenditure, mean number of visits, and lengths of treatment for spinal pain were greater for patients with TMD than for controls ($136 vs. $81, 4.8 days vs. 2.7 days, 5.5 days vs. 3.3 days). Higher TMD grade was associated with greater differences in average medical expenditure, number of visits, and lengths of treatment for spinal pain between cases and controls. Additionally, for women, living in a rural area and having an older age and more severe TMD were associated with a greater probability of spinal pain and higher medical expenditure related to spinal pain. Conclusion A strong association was observed between the presence of TMD and the presence of spinal pain. The association became stronger as the severity of TMD increased, indicating a positive correlation between the severity of TMD and spinal pain.

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The influence of cervical spine rehabilitation on bioelectrical activity (sEMG) of cervical and masticatory system muscles

PLoS ONE ◽

10.1371/journal.pone.0250746 ◽

2021 ◽

Vol 16 (4) ◽

pp. e0250746

Author(s):

Renata Kielnar ◽

Anna Mika ◽

Dorota Bylina ◽

Jarosław Sołtan ◽

Artur Stolarczyk ◽

...

Keyword(s):

Cervical Spine ◽

Neck Pain ◽

Temporomandibular Joint ◽

Rehabilitation Programme ◽

Control Group ◽

Bioelectrical Activity ◽

Upper Trapezius ◽

The Right ◽

The Impact ◽

Experimental Group

Background Coexistence of temporomandibular joint discomfort along with cervical spine disorders is quite common, and is associated with many limitations and adverse symptoms for the patient. Both diagnostics and treatment of these ailments are difficult, and in many cases, the effects of therapy are not satisfactory. This study assessed the impact of a 3-week neck-only rehabilitation programme without direct intervention in the craniofacial area on the bioelectric activity of both the cervical spine and muscles in the craniofacial area among patients with idiopathic neck pain who do not report TMJ pain. Design A parallel group trial with follow-up; Setting: Rehabilitation Clinic. Methods Twenty five patients experiencing idiopathic neck pain underwent the 3-week rehabilitation programme. Thirty five age-matched subjects with no cervical spine and temporomandibular joint (TMJ) dysfunctions were control group. At baseline and after 3 weeks the cervical and craniofacial area muscles’ bioelectrical activity (sEMG) was evaluated. Results In the experimental group during cervical flexion, a significant decrease of sEMG amplitude was noted in the right (mean 25.1 μV; 95% CI: 21.5–28.6 vs mean 16.8 μV; 95% CI: 13.8–19.7) and left (mean 25.9 μV; 95% CI: 21.7–30.0 vs mean 17.2 μV; 95% CI: 13.6–20.7) Sternocleidomastoid as well as a significant increase in sEMG amplitude of the right (mean 11.1 μV; 95% CI: 7.9–14.2 vs mean 15.7 μV; 95% CI: 12.1–19.2) and left (mean 15.3 μV; 95% CI: 11.9–18.6 vs mean 20.2 μV; 95% CI: 15.7–24.2) Upper Trapezius muscles. In the experimental group, after therapy right and left Sternocleidomastoid, Temporalis Anterior and Masseter muscles presented lower fatigue levels. Conclusions Three weeks of rehabilitation without any therapeutic intervention in temporomandibular joint significantly decreased the bioelectrical activity of the neck and craniofacial muscles while improving the muscle pattern of coactivation in participants with idiopathic neck pain who do not report temporomandibular joint pain. These observations could be helpful in the physiotherapeutic treatment of neck and craniofacial area dysfunctions. Trial registration ID ISRCTN14511735—retrospectively registered.

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An evaluation of serum Otolin-1 & Vitamin-D in benign paroxysmal positional vertigo

Journal of Vestibular Research ◽

10.3233/ves-201601 ◽

2021 ◽

pp. 1-8

Author(s):

Harsha Yadav ◽

DVK Irugu ◽

Lakshmy Ramakrishanan ◽

Archana Singh ◽

Ransi Abraham ◽

...

Keyword(s):

Vitamin D ◽

Inner Ear ◽

Test Group ◽

Control Group ◽

Vitamin D Levels ◽

Head Roll ◽

And Control ◽

The Relationship ◽

Paroxysmal Positional Vertigo

BACKGROUND: Serum otolin-1 is an inner ear protein exclusively expressed in otoconia and cells of vestibule and cochlea. Serum otolin-1 is found to be quantifiable in patients with BPPV. Low Vitamin-D is associated with pathogenesis of BPPV. Since otoconia degeneration contributes to BPPV, lack of Vitamin-D may impact otoconia structure and integrity. OBJECTIVE: We aimed at studying the s.otolin-1 as biomarker and significance of vit-D in BPPV. MATERIAL AND METHOD: 23 patients in test and control groups respectively were chosen within the age of 20 to 65 years. All the patients were diagnosed using Dix Hallpike menouver and head roll test, patients were treated with appropriate Canal Reposition Menouver (CRM). RESULTS: Serum Otolin-1 levels among the test ranged from 366 to 882 pg/mL with mean of 585.17 pg/mL whereas in control group ranged from 223 to 462 pg/mL with mean of 335.26 pg/mL. Mean Vitamin-D levels among the test group was 22.67 ng/mL (Range = 6.3–68.4) and that of control 15.43 pg/mL (Range = 5.4–27.7) respectively. The relationship between the serum Otolin-1 and Vitamin-D was not statistically significant. CONCLUSION: Otolin-1 levels is increased in BPPV patients and is sensitive in BPPV, specificity needs to be validated. Role of vitamin-D with respect to inner ear proteins needs further investigation.

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