Barodontalgia during hyperbaric oxygen therapy of an 8-year-old male: A case report.

Barodontalgia, barometric pressure-induced dental pain, may occur during hyperbaric oxygen(HBO2) therapy due to pressure changes. This case report presents an 8-year-old male patient with barodontalgia. The patient declared a severe toothache during HBO2 therapy. The diving medicine specialist referred the patient to the dental clinician immediately. On clinical examination, the pain was thought to be caused by caries lesions of the deciduous teeth in the left maxillary molar region. Tooth extraction was suggested. After extraction, the patient continued hyperbaric oxygen therapy sessions without any pain. The patient was recommended for an intraoral and radiographic examination session one week after the extraction. In conclusion, caries lesions and faulty restorations should be examined before hyperbaric oxygen therapy sessions. Even though barodontalgia is a rare phenomenon, dental examination is essential to avoid these kinds of pain-related complications. All carious lesions and defective restorations must be treated, if necessary. Removal of faulty restorations and management of inflammation as part of the treatment is suggested before exposure to pressure changes.

Persistent Toothache Despite Multiple Dental-related Treatments: How Could this Be?

Patients with recurrent or persistent dentoalveolar pain usually believe that endodontic treatment or extracting a tooth will alleviate it, and most cannot conceive that the pain might not be tooth related. Understanding that dental procedures of any kind will be ineffective when a tooth-related pathology is ruled out and that a nonodontogenic etiology best explains the "toothache" pain goes against their beliefs. In this article, we present an overview of basic concepts to help manage such cases by briefly outlining possible causes of nonodontogenic pain as well as diagnostic pitfalls that may lead to questionable treatments. The decision to provide dental treatment is justified only when definitive peripheral mechanisms driving the pain are uncovered and the multitude of factors that might contribute to the various presentations of persistent dental pain have been considered. Otherwise, patients might be managed with treatments that are not the norm for those with unremitting tooth pain in general dental practice. We also make suggestions for clinicians to assure that patients with recurrent or persistent dental pain receive a thorough work-up that considers odontogenic and nonodontogenic sources to arrive at the correct diagnosis before treatment, taking psychosocial factors into account when devising the treatment plan.

Evidence-based clinical practice guideline for the pharmacologic management of acute dental pain in adolescents, adults, and older adults: A report from the American Dental Association Science and Research Institute, the University of Pittsburgh, and the University of Pennsylvania.

BACKGROUND: A panel convened by the American Dental Association Science and Research Institute, the University of Pittsburgh, and the University of Pennsylvania conducted systematic reviews and meta-analyses and formulated evidence-based recommendations for the pharmacologic management of acute dental pain after simple and surgical tooth extraction(s) and for the temporary management (ie, definitive dental treatment not immediately available) of toothache associated with pulp and periapical diseases in adolescents, adults, and older adults. TYPES OF STUDIES REVIEWED: The panel conducted 4 systematic reviews to determine the effect of opioid and nonopioid analgesics, local anesthetics, corticosteroids, and topical anesthetics on acute dental pain. The panel used the Grading of Recommendations, Assessment, Development and Evaluation approach to assess the certainty of the evidence and the Grading of Recommendations, Assessment, Development and Evaluation Evidence-to-Decision Framework to formulate recommendations. RESULTS: The panel formulated recommendations and good practice statements using the best available evidence. There is a beneficial net balance favoring the use of nonopioid medications compared with opioid medications. In particular, nonsteroidal anti-inflammatory drugs alone or in combination with acetaminophen likely provide superior pain relief with a more favorable safety profile than opioids. CONCLUSIONS AND PRACTICAL IMPLICATIONS: Nonopioid medications are first-line therapy for managing acute dental pain after tooth extraction(s) and the temporary management of toothache. The use of opioids should be reserved for clinical situations when the first-line therapy is insufficient to reduce pain or there is contraindication of nonsteroidal anti-inflammatory drugs. Clinicians should avoid the routine use of just-in-case prescribing of opioids and should exert extreme caution when prescribing opioids to adolescents and young adults.

Diagnostic Accuracy of a Temporomandibular Disorder Pain Screener in Patients Seeking Endodontic Treatment for Tooth Pain.

INTRODUCTION: This study assessed the accuracy of a TMD Pain Screener questionnaire in identifying patients with temporomandibular disorder (TMD) pain among those seeking endodontic treatment for tooth pain. It also investigated whether the screener accuracy could be improved by adding questions regarding putative predictors of TMD status. METHODS: One hundred patients seeking endodontic treatment for tooth pain were enrolled. Participants completed the 6-question TMD Pain Screener before treatment. A board-certified orofacial pain specialist/endodontic resident conducted endodontic and TMD examinations using validated Diagnostic Criteria for TMD (DC/TMD). The sensitivity (Se), specificity (Sp), and positive/negative predictive values (PPVs/NPVs) were calculated for the 6-question and 3-question versions of the TMD Pain Screener. Logistic regression and receiver operating characteristic curve (AUROC) analyses were performed to determine the screening accuracy. RESULTS: At the screening threshold of ≥3, TMD Pain Screener's sensitivity was 0.85, specificity 0.52, PPV 0.68, and NPV 0.75 for the 6-question version and 0.64, 0.65, 0.69, and 0.61, respectively, for the 3-question version. The AUROC was 0.71 (95% CL: 0.61, 0.82) and 0.60 (95% CL: 0.48, 0.71) for full and short versions, respectively. Adding a rating of current pain intensity of the chief complaint to the screener improved the AUROC to 0.81 (95% CL: 0.72, 0.89) and 0.77 (95% CL: 0.67, 0.86) for full and short versions, respectively, signifying useful overall accuracy. CONCLUSIONS: The 6-question TMD Pain Screener, combined with the patient's rating of current pain intensity of the chief complaint, could be recommended for use in endodontic patients with tooth pain for detecting painful TMD.

Visually impaired population from low socioeconomic strata and their oral health status: an observational study.

A significant portion of the world's population suffers from blindness. Despite being a vital part of systemic health, oral health is neglected in such a population. The present study aimed to determine the oral health status of blind individuals in north India and to identify the factors affecting it. Sixty-nine blind students from a local school for the visually impaired were included in the study. A questionnaire was used to record the basic demographic details and oral habits, followed by an oral examination by a single trained dentist to record dental caries, periodontal status and dental trauma. The prevalence of Dental caries was 63.8% (mean 1.43 ± 1.61). Gingival bleeding on probing (BOP) was found in 60.9% of individuals. Dental trauma prevalence was 23.2%, and harmful oral habits were found in 31.9% of individuals. Individuals experiencing a toothache in the last year had a 1.784 times higher risk of dental caries than those who didn't experience a toothache. Individuals having acquired blindness are 2.411 times more prone to dental trauma in comparison to those suffering from congenital blindness. Blind individuals have poor oral health. Toothache in the last one year is an important risk factor for dental caries in such individuals. Acquired blindness makes a person more susceptible to dental trauma than congenital blindness.

Lymphoma masquerading as jaw pain, headache, and syncope: A case report.

BACKGROUND: Lymphomas of parapharyngeal space often have complex manifestations, posing a diagnostic dilemma for clinicians. CASE DESCRIPTION: A 64-year-old man sought treatment for a 4-month history of unresolving right-sided headache and jaw pain associated with syncope, all of which started with a toothache. Since the onset of pain, the patient had undergone multiple diagnostic tests with various specialists, with no pain relief. A detailed clinical and radiologic examination by an orofacial pain specialist revealed diffuse large B-cell lymphoma in the parapharynx. PRACTICAL IMPLICATIONS: A thorough knowledge of the head and neck anatomy helps in identifying the pathophysiology of complex orofacial pain manifestations, which assists in early diagnosis and treatment.

Expression of Selected Inflammatory Mediators with Different Clinical Characteristics of Pulpal Inflammation.

INTRODUCTION: Accurately diagnosing the state of dental pulp is crucial when addressing tooth pain to determine the best treatment approach. This study aimed to investigate the concentration of inflammatory mediators in the dental pulp of mature teeth that have been exposed via caries but show no signs of apical periodontitis. METHODS: Samples of pulpal blood from adults with mature teeth responsive to pulp testing and have carious pulp exposures were obtained. These samples were analyzed for 12 inflammatory cytokines and other inflammatory proteins using the Luminex assay platform. Clinical factors were correlated with cytokine levels, and statistical analysis was performed to evaluate the impact of these factors on cytokine expression. RESULTS: Of the 36 patients that were included, 44.44% took pain medications, 33.33% had prolonged pulpal bleeding, 41.67% felt spontaneous pain, and 72.22% were diagnosed with symptomatic irreversible pulpitis. Significant correlations existed between presenting pain scores and levels of interleukin (IL)-1α, IL-6, and IL-8 (P < .05). Factors like analgesic medication intake, pain to percussion, pain to thermal testing, spontaneous pain, and nocturnal pain were significantly associated with higher levels of specific inflammatory proteins. No significant associations were observed with pain to palpation, bleeding time, or pulpal diagnosis. CONCLUSIONS: Inflammatory proteins, including cytokine levels may play a critical role in characterizing pulpal inflammation. Future studies should investigate the role of these potential biomarkers in determining the diagnosis of pulpitis and the prognosis of vital pulp therapy.

Self-medication associated with toothache: a systematic literature review / Automedicação associada à dor de dente: uma revisão sistemática da literatura / Automedicación asociada al dolor de dientes: una revisión sistemática de la literatura

Introduction: Self-medication consists of selecting and using medication without a poprescription or guidance from a healthcare professional. This practice has been widely reported worldwide, which has contributed to a series of adverse health outcomes, such as delayed diagnosis, worsening of clinical conditions, drug interactions, intoxication, and adverse reactions, which tend to compromise patient safety. Objective:To analyze the prevalence of self-medication associated with toothache, the main factors associated with self-medication in dental patients, as well as outline the profile of medications used by these individuals, the preferred route of administration, and the main sources of medication.Methodology:Asystematic review was developed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Relevant articles published in the last ten years, without limitations of language were searched using the following descriptors/MeSHterms and keywords: "self-medication" and (toothache or "dental pain") not Child. Results:The initial search returned 61 manuscripts. Fourteen papers, all cross-sectional studies, were eligible for inclusion in the systematic review.Conclusions:The prevalence of self-medication for toothache ranged from 6.5% to 100.0%. Cultural and economic factors, barriers to access, the high cost of dental treatments, lack of time and money, and the perception that dental problems are not a serious problem are among the main factors associated with the practice. Regarding the drugs used, the most used classes were paracetamol, especially anti-inflammatory drugs, particularly ibuprofen, and analgesics administered orally (AU).

Introdução:A automedicação consiste na escolha e uso de medicamentos sem prescrição ou orientação de um profissional de saúde. Essa prática tem sido amplamente divulgada em todo o mundo, o que tem contribuído para uma série de desfechos adversos à saúde, como atraso no diagnóstico, piora do quadro clínico, interações medicamentosas, intoxicações e reações adversas, que tendem a comprometer a segurança do paciente. Objetivo:Analisar a prevalência da automedicação associada à dor de dente, os principais fatores associados à automedicação em pacientes odontológicos, bem como traçar o perfil dos medicamentos utilizados por esses indivíduos, a via preferencial de administração e as principais fontes de medicação. Metodologia:Uma revisão sistemática foi desenvolvida de acordo com os itens de relatório preferidos para revisões sistemáticas e meta-análises (PRISMA). Foram pesquisados artigos relevantes publicados nos últimos dez anos, sem limitação de linguagem, utilizando os seguintes descritores/MeSHterms e palavras-chave: "self-medication" e (toothache or "dental pain") não Child. Resultados:A busca inicial encontrou61manuscritos. Quatorze artigos, de delineamento transversal,foram considerados elegíveis e incluídos para a revisão.Conclusões:A prevalência de automedicação para dor de dente variou de 6,5% a 100,0%. Fatores culturais e econômicos, barreiras de acesso, alto custo dos tratamentos odontológicos, falta de tempo e dinheiro e a percepção de que os problemas odontológicos não são um problema grave estão entre os principais fatores associados à prática. Em relação aos medicamentos utilizados, as classes mais utilizadas foram o paracetamol, principalmente os anti-inflamatórios, principalmente o ibuprofeno, e os analgésicos por via oral (AU).

Introducción: La automedicación consiste en seleccionar y utilizar medicamentos sin receta ni orientación de un profesional sanitario. Esta práctica ha sido ampliamente reportada a nivel mundial, lo que ha contribuido a una serie de resultados adversos para la salud, como retraso en el diagnóstico, empeoramiento de las condiciones clínicas, interacciones medicamentosas, intoxicaciones y reacciones adversas, que tienden a comprometer la seguridad del paciente.Objetivo: Analizar la prevalencia de automedicación asociada al dolor de muelas, los principales factores asociados a la automedicación en pacientes odontológicos, así como delinear el perfil de medicamentos utilizados por estos individuos, la vía de administración preferida y las principales fuentes de medicación. Metodología: Se desarrolló una revisión sistemática de acuerdo con los Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Se buscaron artículos relevantes publicados en los últimos diez años, sin limitaciones de idioma, utilizando los siguientes descriptores/MeSHterms y palabras clave: "self-medication" y (toothache or "dental pain") not Child. Resultados: La búsqueda inicial arrojó 61 manuscritos. Catorce artículos, todos estudios transversales, fueron elegibles para su inclusión en la revisión sistemática.Conclusiones: La prevalencia de automedicación para el dolor de muelas osciló entre 6,5% y 100,0%. Los factoresculturales y económicos, las barreras de acceso, el alto costo de los tratamientos dentales, la falta de tiempo y dinero, y la percepción de que los problemas dentales no son un problema grave se encuentran entre los principales factores asociados con la práctica. En cuanto a los fármacos utilizados, las clases más utilizadas fueron el paracetamol, especialmente los antiinflamatorios, especialmente el ibuprofeno, y los analgésicos por vía oral (AU).

Teledentistry and Forensic Odontology: Qualitative Study on the Capacity of Implementation.

The postmortem identification of people without an identity is performed either by using DNA, dental charts, or fingerprints (until advanced decomposition prevents their study). The lack of forensic dentists who can conduct identifications lead us to reflect on the use of digital technology in this area. The aim of this study was to validate the organizational capacity of using teledentistry for the identification of bodies in a forensic medicine department. A mixed observational study was conducted on 55 cases between July 2020 and February 2021 in the Forensic Medicine and Thanatology Department of Montpellier University Hospital. The protocol was structured in five steps: an initial interview with the agent (a forensic autopsy technician/caregiver specialized in forensic medicine), regarding the idea they had in terms of using telemedicine in their daily practice; agent training in the telemedicine system; realization of a clinical examination using an intra-oral camera by the agent; data analysis by a dental surgeon; final interview with the agent. The study was conducted on 55 subjects. The average age was 54 years old, with more than two-thirds of the patients being male (69%). The videos had an average duration of 29 min. There was an increase in visit duration when rigidity was high; this was also the case when there were many dental specificities in the oral cavity. The quality of the videos was either good or excellent. This study showed that remote identification could be considered as a new non-invasive identification tool. Many features were analyzed to create a training guide for forensic institutes.

An extraoral approach to intraoral cooling-a feasibility study in non-cancer patients.

BACKGROUND: Cryotherapy, using ice chips (IC) is an effective strategy to prevent chemotherapy-induced oral mucositis (OM) in selected cancer patient cohorts. However, although effective, use of IC may cause adverse reactions, e.g., nausea, numbness, and shooting pain in the teeth, which could have an adverse impact on the medical treatment. Furthermore, IC requires water of good quality to minimize risk of serious systemic infections. To eliminate these disadvantages, novel cooling devices have emerged as alternative cooling modalities. Thus, the aim was to evaluate the efficacy and tolerability profile of extraoral cooling for intraoral temperature reduction. SUBJECTS AND METHODS: This experimental pilot study was conducted at the Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. In total, six healthy volunteers were enrolled in this study. At baseline and following 30-, and 60 min of cooling with the extraoral cooling device, intraoral mucosal temperatures were measured using a thermographic camera, and a questionnaire related to tolerability was completed. RESULTS: Following 30-, and 60 min of cooling, the intraoral temperature decreased with 2.0 °C and 2.3 °C, respectively. Extraoral cooling was well tolerated, and all subjects endured the entire cooling session of 60 min. CONCLUSION: Extraoral cooling reduces intraoral mucosal temperatures and is a well-tolerated cooling modality.

A Patient with Herpes Zoster of the Maxillary Division of Trigeminal Nerve Presents for Oral Evaluation and Toothache.

Herpes zoster (HZ) is an acute and painful neurocutaneous infection caused by the reactivation of a latent varicella-zoster virus in the dorsal root or cranial nerve ganglia. It is characterized by 3 stages: prodromal, acute, and chronic. During the prodromal stage, reactivation in the maxillary branch of the trigeminal nerve closely mimics odontalgia, and HZ should be in the differential diagnosis. Patients with HZ develop painful lesions following the affected dermatome. Laboratory testing confirms the diagnosis; treatment is with antiviral agents. Early detection and treatment shorten the course of the infection and lessen the severity of the associated postherpetic neuralgia.

Dental Pain Medication Prescriptions in Minas Gerais, Brazil (2011-2021): A Time-Series Analysis.

To describe trends of dentist-prescribed non-steroidal anti-inflammatory drugs (NSAIDs) and analgesics, from January 2011 to December 2021, as well as to examine the relationship between these trends and characteristics of public oral health services in Minas Gerais, Brazil. In this time-series analysis, all drugs were classified according to the Anatomical Therapeutic Chemical classification system. Drugs categorized as NSAIDs (M01A), and other analgesics and antipyretics (N02B) were included for analysis. The outcome was the number of Defined Daily Doses (DDDs)/1000 inhabitants/year for NSAIDs and analgesics in each town. Covariates referred to characteristics of public oral health services, such as coverage, estimates of dental procedures, and frequency of toothache. Linear time-series regression models were used to determine the influence of covariates on the outcome. Overall, there were 58,482 prescriptions of NSAIDs recorded in thirty-eight towns, while 47,499 prescriptions of analgesics in forty-three towns. For each year, there was a 0.38 (p < 0.001), and 0.28 (p < 0.001) increase in the average log of DDD/1000 inhabitants/year for NSAIDs and analgesics, respectively. A positive association was detected between toothache (p < 0.001) and the prescription of NSAIDs. Over the eleven years, there was a general rising trend in the prescriptions. Toothache was the only characteristic of public oral health services associated with the prescription rates of NSAIDs, implying that as the frequency of toothaches increase, so do the prescriptions of NSAIDs in the studied towns.

La presencia de las humanidades en las carreras de odontología de las universidades de Chile y de España / The Presence of Humanities in Dental Studies at Universities in Chile and Spain

Se ha argumentado que la presencia de materias humanísticas permite una formación integral de los alumnos, lo que fomentaría en última instancia una mejor relación con los futuros pacientes y, por tanto, contribuiría a mejorar la salud de la población. El objetivo del presente estudio consistió en investigar la presencia de contenidos humanísticos en los grados de Odontología de las universidades de Chile y de España.Se encontró que en todas las universidades existen materias humanísticas que complementan la formación disciplinar de los graduados. Si bien se encontraron diferencias entre las universidades chilenas y españolas, las materias relacionadas con contenidos éticos, históricos y con el profesionalismo son ofrecidas por la gran mayoría de las universidades de los dos países. Por otra parte, la presencia de materias relacionadas con la literatura o con las artes plásticas, visuales y escénicas fue escasa, muy minoritaria en España y nula en Chile.Se aboga por aumentar la presencia de la formación humanística en los graduados de odontología, no solamente a partir de asignaturas específicas, sino introduciendo contenidos humanísticos en las materias troncales de formación técnica odontológica. (AU)

It has been argued that the presence of humanities in the curriculum, allows for a comprehensive student training. This would ultimately foster a better relationship with future patients and, therefore would contribute to improving the health of the population. The aim of this study was to investigate the presence of humanities-related content in dentistry degrees at universities in Chile and Spain.It was found that in all universities there were subjects related to humanities that complemented the disciplinary training of graduates. Although differences were found between the two countries, subjects related to ethical, historical and professional content were offered by the vast majority of universities in both countries. On the other hand, the presence of subjects related to literature or art, such as plastic, visual, and performing arts was scarce, very minor in Spain and nothing in Chile.It is recommended to increase the presence of humanities in students’ dental training, not only specific courses, but also by introducing contents that are related to humanities in the core curriculum of dental technical training. (AU)

Evidence-based clinical practice guideline for the pharmacologic management of acute dental pain in children: A report from the American Dental Association Science and Research Institute, the University of Pittsburgh School of Dental Medicine, and the Center for Integrative Global Oral Health at the University of Pennsylvania.

BACKGROUND: A guideline panel convened by the American Dental Association Council on Scientific Affairs, American Dental Association Science and Research Institute, University of Pittsburgh School of Dental Medicine, and Center for Integrative Global Oral Health at the University of Pennsylvania conducted a systematic review and meta-analyses and formulated evidence-based recommendations for the pharmacologic management of acute dental pain after 1 or more simple and surgical tooth extractions and the temporary management of toothache (that is, when definitive dental treatment not immediately available) associated with pulp and furcation or periapical diseases in children (< 12 years). TYPES OF STUDIES REVIEWED: The authors conducted a systematic review to determine the effect of analgesics and corticosteroids in managing acute dental pain. They used the Grading of Recommendations Assessment, Development and Evaluation approach to assess the certainty of the evidence and the Grading of Recommendations Assessment, Development and Evaluation Evidence to Decision framework to formulate recommendations. RESULTS: The panel formulated 7 recommendations and 5 good practice statements across conditions. There is a small beneficial net balance favoring the use of nonsteroidal anti-inflammatory drugs alone or in combination with acetaminophen compared with not providing analgesic therapy. There is no available evidence regarding the effect of corticosteroids on acute pain after surgical tooth extractions in children. CONCLUSIONS AND PRACTICAL IMPLICATIONS: Nonopioid medications, specifically nonsteroidal anti-inflammatory drugs like ibuprofen and naproxen alone or in combination with acetaminophen, are recommended for managing acute dental pain after 1 or more tooth extractions (that is, simple and surgical) and the temporary management of toothache in children (conditional recommendation, very low certainty). According to the US Food and Drug Administration, the use of codeine and tramadol in children for managing acute pain is contraindicated.

[Prevalence of dental and mucosal lesions among the pediatric population who attended the emergency department of a general hospital].

BACKGROUND: The high prevalence of oral pathology in children encourages to gain further understanding on their manifestations and urgent nature, objective of the present study Methodology. Cross-sectional study that included patients aged <14 years of age who attended an emergency department over a one-year period. The relationship between the variables collected and oral pathology was analyzed. RESULTS: Fifty-five patients were included, 45.5% girls, mean age 4.11 years (10 days to 13 years). Overall, mucosal pathology (74.5%) prevailed over dental ones, and lesions of infectious origin (54.6%) over the traumatic ones (14.5%). Dental pathology (50% toothache and 35.7% infections) was significantly associated with being >6 years (66.7 vs 10%), pain (40.7 vs 10.7%) and absence of fever (37.9 vs 11.5%). Mucosal pathology (61% infections: 53.7% viral and 31.7% due to herpangina) was significantly associated with being =6 years (60 vs 6.7%) and having fever (76.9 vs 17.2%). Six traumatic lesions on the mucosa and two on the teeth were observed; significantly more patients attended the emergency room within 24 hours (median =1 hour) than in the case of infection (100 vs 51.7%). Being =6 years was significantly associated with fever, mucosal pathology, mucosal infection, and herpangina, and being >6 years was associated with pain, previous antibiotic treatment and at discharge, and previous NSAID regimen. CONCLUSIONS: The analyzed pediatric oral pathologies treated in the emergency department are of mucosal and infectious origin. Dental disease prevail in children >6 years of age and mucosal lesions in those =6 years; no sex differences are observed.

The national child odontology registry (SCOR): a valuable resource for odontological and public health research.

BACKGROUND: Since 1972 The National Child Odontology Registry has collected data on the oral health of most of all Danish children and adolescents. However, comprehensive information on the registry has not previously been available, making it difficult to approach and use the registry for research purposes. METHODS: By combining historical documentation and simple descriptive statistics we provide an overview of major events in the timeline of The National Child Odontology Registry and discuss how they impact the available data. We provide a broad overview of the dental variables in the registry, and how the registration criteria for some of the core dental variables (gingivitis, periodontitis, and dental caries) have changed over time. We then provide examples of how aggregate variables for the core dental diseases, allowing for comparison across registration criteria, can be created. RESULTS: Most of the Danish population born during or after 1965 have a least one entry in the National Child Odontology Registry, with 68% having entries spanning their entire childhood and adolescence. The prevalence of gingivitis and periodontitis seem to increase significantly in the years immediately following changes in how registration criteria for these variables, raising questions as to whether these diseases are generally underreported, or subject to overreporting in the years following the registration changes. The mandatory ages of registration instituted in 2003, do not appear to have had a strong impact on the ages at which registrations are made. For variables not directly comparable across datasets due to changes in registration criteria aggregate variables of measurements can be computed in most cases. CONCLUSIONS: The National Child Odontology Registry provides a unique opportunity to study the impact of childhood oral health on life trajectories, but using the registry is not without issues, and we strongly recommend consulting with experts in the field of odontology to ensure the best use of available data.