| D009609 |
Nitrous Oxide |
Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream. |
Laughing Gas,Nitrogen Protoxide,Gas, Laughing,Oxide, Nitrous |
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| D009784 |
Occupational Diseases |
Diseases caused by factors involved in one's employment. |
Diseases, Occupational,Occupational Illnesses,Disease, Occupational,Illnesse, Occupational,Illnesses, Occupational,Occupational Disease,Occupational Illnesse |
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| D011795 |
Surveys and Questionnaires |
Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions. |
Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response |
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| D003727 |
Dental Auxiliaries |
Personnel whose work is prescribed and supervised by the dentist and who provide dental related care. |
Auxiliaries, Dental,Auxiliary, Dental,Dental Auxiliary |
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| D003815 |
Dentists |
Individuals licensed to practice DENTISTRY. |
Dentists, Pediatric,Dentists, Prosthetic,Dentists, Restorative,Periodontists,Prosthodontists,Dentist,Dentist, Pediatric,Dentist, Prosthetic,Dentist, Restorative,Pediatric Dentist,Pediatric Dentists,Periodontist,Prosthetic Dentist,Prosthetic Dentists,Prosthodontist,Restorative Dentist,Restorative Dentists |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D000766 |
Anesthesia, Dental |
A range of methods used to reduce pain and anxiety during dental procedures. |
Dental Anesthesia |
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| D012189 |
Retrospective Studies |
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. |
Retrospective Study,Studies, Retrospective,Study, Retrospective |
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