Immediately loaded implants in a patient with involuntary mandibular movements: a clinical report.

Immediately loaded implant prostheses have been used to successfully rehabilitate completely edentulous arches. Risk factors for successful treatment have not included involuntary mandibular movements. The treatment was completed on a patient with a history of neuroleptic medications who had remaining mandibular teeth extracted and then developed involuntary mandibular movements.

Deep and superficial masseter muscle blood flow in women.

Purpose: Although changes in blood perfusion have been described as being associated with temporomandibular disorder (TMD) myofascial pain, very little is known about blood flow levels in the deep and superficial masseter muscle. This study investigated blood flow in deep and superficial sites of six healthy female participants at baseline and during intermittent and continuous biting exercises and recovery.

Materials And Methods: Blood flow was monitored unilaterally using a single-fiber probe laser Doppler flowmeter.

Temporomandibular disorder-type pain and migraine headache in women: a preliminary twin study.

Aims: To determine whether shared genetic influences are responsible for the association between pain from temporomandibular disorders (TMD) and migraine headache.

Methods: Data were obtained from 1,236 monozygotic and 570 dizygotic female twin pairs from the University of Washington Twin Registry. TMD pain was assessed with a question about persistent or recurrent pain in the jaw, temple, in front of the ear, or in the ear.

Self-reported comorbid pains in severe headaches or migraines in a US national sample.

Aims: To compare prevalence of self-reported comorbid temporomandibular joint muscle disorder-type, neck, back, and joint pains in people with severe headache or migraine; and analyze these self-reported pains in the 2000-2005 US National Health Interview Survey by gender and age for non-Hispanic whites, Hispanics, and non-Hispanic blacks (African Americans).

Methods: National Health Interview Survey data included information on gender, age, race, ethnicity, health status, and common pain types: severe headache or migraine, temporomandibular joint muscle disorder-type, neck, and low back in the last 3 months, as well as prior-month joint pains. Analyses included survey prevalence estimation and survey logistic regression to obtain odds ratios and 95% confidence intervals.

Chronic Pain in a Biracial Cohort of Young Women.

This is a longitudinal study of a large US biracial community cohort of 732 young women - 50% African-American and 50% Caucasian - specifically investigating incidence, remission, and progression of, as well as factors associated with common chronic pains (back, head, face, chest and abdomen). The results show back, head and abdominal pains were the most common, severe and persistent pains. Facial pain, although less common and severe, was the only pain presenting significant racial differences with Caucasians having higher prevalence, incidence and persistence; incidence per 1000 person-years was 58 for Caucasians and 18 for African-Americans while remission per 1000 person-years was 107 for Caucasians and 247 for African-Americans (p<0.

Temporomandibular joint and muscle disorder-type pain and comorbid pains in a national US sample.

Aims: To compare prevalences of self-reported comorbid headache, neck, back, and joint pains in respondents with temporomandibular joint and muscle disorder (TMJMD)-type pain in the 2000-2005 US National Health Interview Survey (NHIS), and to analyze these self-reported pains by gender and age for Non-Hispanic (NH) Whites (Caucasians), Hispanics, and NH Blacks (African Americans).

Methods: Data from the 2000-2005 NHIS included information on gender, age, race, ethnicity, education, different common types of pain (specifically TMJMD-type, severe headache/migraine, neck, and low back pains), changes in health status, and health care utilization. Estimates and test statistics (ie, Pearson correlations, regressions, and logistic models) were conducted using SAS survey analysis and SUDAAN software that take into account the complex sample design.

Racial/Ethnic and gender prevalences in reported common pains in a national sample.

Aims: To compare prevalences of self-reported temporomandibular joint and muscle disorders (TMJMD)-type pain, headaches, and neck and back pains in the 2000 to 2005 US National Health Interview Survey (NHIS) by gender and age for non-Hispanic Whites (Whites), Hispanics, and non-Hispanic Blacks (Blacks).

Methods: Data from the 2000 to 2005 NHIS included information on gender, age, race, ethnicity, and different common types of pain specifically: TMJMD-type pain, severe headaches/migraine, neck, and low back pains.

Results: A total of 189,992 people were included: 52% female and 48% male, 73% White, 12% Hispanic, 11% Black, and 4% "Other.

Temporomandibular joint and muscle disorder-type pain in U.S. adults: the National Health Interview Survey.

Aims: To compare prevalences of self-reported temporomandibular joint and muscle disorders (TMJMD)-type pain in the 2002 U.S. National Health Interview Survey (NHIS) by age and gender for non-Hispanic whites (Caucasians) and non-Hispanic blacks (African Americans).

Are post-traumatic stress disorder symptoms and temporomandibular pain associated? Findings from a community-based twin registry.

Aims: To determine whether symptoms of post-traumatic stress disorder (PTSD) are related to the pain of temporomandibular disorders (TMD) in a community-based sample of female twin pairs, and if so, to ascertain whether the association is due to the presence of chronic widespread pain (CWP) and familial/genetic factors.

Methods: Data were obtained from 630 monozygotic and 239 dizygotic female twin pairs participating in the University of Washington Twin Registry. PTSD symptoms were assessed with the Impact of Events Scale (IES), with scores partitioned into terciles.

Correlation of admissions criteria with academic performance in dental students.

Our purpose was to compare admissions criteria as predictors of dental school performance in underachieving and normally tracking dental students. Underachieving dental students were identified by selecting ten students with the lowest class grade point average following the first year of dental school from five classes, resulting in a pool of fifty students. Normally tracking students served as a control and were randomly selected from students who had completed their first year of dental school not in the underachieving group.

Widespread pain and fibromyalgia in a biracial cohort of young women.

Objective: To assess the distribution of widespread pain, tenderpoints (TP), and fibromyalgia (FM) in young African American (AA) and Caucasian (C) women.

Methods: A community population of 1334 young (21-26 yrs old) women (684 AA and 650 C) was surveyed and classified for body pain spread [chronic widespread pain (CWP), axial regional chronic pain (RCP), nonaxial RCP, or no pain]. Of these women, 553 were examined for TP based on American College of Rheumatology criteria.

Complications associated with fixed partial dentures with a loose retainer.

Statement Of Problem: When 1 retainer of a definitive fixed partial denture (FPD) becomes loose, the clinician has the option of either sectioning and removing the FPD or attempting removal of the intact cemented retainer. Excessive force during attempted FPD removal may irreversibly damage dentition.

Purpose: This study evaluated the type and frequency of complications that may accompany the removal of definitive cemented FPDs with a single loose retainer.

Diagnoses based on the Research Diagnostic Criteria for Temporomandibular Disorders in a biracial population of young women.

Aims: To compare the clinical characteristics of diagnostic subtypes of temporomandibular disorders (TMD) based on the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) in terms of physical findings (Axis I) and psychosocial findings (Axis II) among Caucasian and African American young women. An ancillary goal was to assess the value of using self-reported TMD pain as a screening tool compared to RDC/TMD examinations.

Methods: A biracial community sample (n = 830) of young women 19 to 23 years old was screened for facial pain with the Chronic Pain Grade questionnaire.

Reports of body pain in a dental student population.

Background: Dentists experience more neck, shoulder and lower back pain than do practitioners in other occupational groups. The authors examined the prevalence of musculoskeletal pain in dental students, by sex.

Methods: The authors investigated the body distribution and severity of reported musculoskeletal pain in a population of dental students, considering increased exposure to clinical experience with years in dental school.

Chronic pain in a biracial population of young women.

This study investigated dimensions of chronic pain and temporomandibular disorders (TMDs) in a census tract sampling of African-American and Caucasian young women enrolled (from racially congruent households) at ages 9-10 in the longitudinal multicenter National Heart Lung and Blood Institute's Growth and Health Study (NGHS). The present study, which examined participants at the California clinical NGHS center when they were 19-23 years old, investigates five commonly reported chronic pains: back, head, face/jaw, abdomen, and chest. Chronic pain grade (CPG) status based on pain self-reports (frequency, duration, severity, and interference with usual activities) is reported for each of the five pain sites.

Treatment planning in the 21st century: what's new?

Many variables affect treatment planning, and it is important for clinicians to consider why they plan certain procedures for patient care. New materials, technologies, and products are constantly being introduced and affect decision making in dentistry. In addition, patients are more informed, have higher esthetic concerns, and want a greater stake in treatment planning decisions than ever before.

Amitriptyline treatment of chronic pain in patients with temporomandibular disorders.

Randomized clinical trials of amitriptyline will require data from pilot studies to be used for sample size estimates, but such data are lacking. This study investigated the 6-week and 1-year effectiveness of low dose amitriptyline (10-30 mg) for the treatment of patients with chronic temporomandibular disorder (TMD) pain. Based on clinical examination, patients were divided into two groups: myofascial and mixed (myofascial and temporomandibular joint disorders).

Fracture resistance of endodontically treated teeth restored with bonded amalgam and full crowns.

The use of dentin bonding prior to placement of core build-up restorations has been shown to reduce microleakage and reinforce remaining tooth structure. However, information is lacking about the influence a core build-up has on the fracture resistance of crowned teeth. The purpose of this in-vitro study was to compare the influence of three types of core build-ups on the fracture resistance of crowned teeth.

The relationship between chronic facial pain and a history of trauma and surgery.

Objective: Because pain is the most commonly reported symptom of patients presenting to temporomandibular disorders clinics, it is important to identify factors that modify the perception or reality of such pain. The purpose of this study was to investigate the hypothesis that a patient with a history of trauma and/or non-temporomandibular joint surgery might be sensitized to pain and might report increased pain levels if a temporomandibular disorder later developed.

Study Design: This was a retrospective study of 778 consecutive patients seen over a 1-year period in an Orofacial Pain Clinic.

Modeling of jaw biomechanics in the reconstructed mandibulectomy patient.

Statement Of Problem: Biomechanics of occlusal force and indirect calculation of temporomandibular joint loading in patients after surgery for head and neck cancer is poorly understood.

Purpose: This study compared occlusal force values of 6 mandibulectomy subjects with reconstructed mandibles to 6 noncancer subjects with intact mandibles and reports occlusal force predictions from a developed computer model simulation of both a mandibulectomy subject with a reconstructed mandible and noncancer subject with an intact mandible.

Material And Methods: Maximum occlusal force was recorded at the first molar and incisal edge in 6 mandibulectomy subjects who had bony reconstruction of the mandible and 6 noncancer subjects with an intact mandible.

Bruxing patterns in children compared to intercuspal clenching and chewing as assessed with dental models, electromyography, and incisor jaw tracing: preliminary study.

The purpose of the present study was to compare bruxing patterns in children with chewing and maximum intercuspal clenching as defined in a clinical and laboratory environment. Six non-bruxing controls and six children who actively bruxed according to parent reports were evaluated. Both control and experimental subjects were assessed by an initial questionnaire, intraoral examination, extraoral examination, dental study models, incisor mandibular tracking, and bilateral surface electromyographic recordings (e.

Gender difference in jaw pain induced by clenching.

Seven normal male and seven normal female volunteers performed three types of biting exercises: an intermittent contraction at maximum voluntary bite force (MVBF) to pain intolerance; a ramp intermittent contraction starting at 10% MVBF and increasing 10% every 10 s; and a sustained biting at 100% MVBF to pain intolerance. The following measurements were made on the first and second days before exercise: a pre- and post-exertional overall jaw pain level; maximum pain-free jaw opening; bilateral masseter pressure pain threshold (PPT) and intolerance (PPI). The results showed that only females presented an increased overall pain level on the second day and a significant decrease in pain-free jaw opening, but no significant decrease of PPT and PPI.

Crevicular fluid analysis around two failing dental implants: a clinical report.

The criteria for monitoring tissue health around endosseous implants remain subjective. Disagreement about which clinical measures of peri-implant health are of diagnostic value continues because of the complexity of the disease process and lack of validated measures of peri-implant health. Crevicular fluid analysis of various inflammatory mediators has been investigated as a means of providing objective criteria of tissue health.

A comparison of masticatory function in patients with or without reconstruction of the mandible.

Background: The functional benefits of mandibular reconstruction following a composite resection remain unclear. Although microvascular surgical techniques have dramatically increased the predictability of bone and soft-tissue reconstruction towards presurgical anatomic norms, the specific factors responsible for improved function remain controversial. Objective measures of masticatory function need to be more clearly determined before the predictability and efficacy of reconstructive approaches is established.

Effect of nonvital tooth bleaching on microleakage of resin composite restorations.

Thirty-six extracted, noncarious, nonfractured human incisors were divided into four groups of nine teeth. Endodontic access cavities were prepared, the pulp chamber was debrided, the root canals were cleansed, and root canal treatment was completed. Pulp cavities of teeth in group 1 received a cotton pellet and were sealed with Cavit.