RESUMO
Controversy surrounds the importance of keratinized gingiva in maintaining periodontal health. A well-defined animal model system is necessary to evaluate longitudinally the role of keratinized gingiva when plaque control is inadequate or where dental procedures (restorative, prosthetic or orthodontic) alter the periodontal environment. Facial gingiva was excised from eight primary incisors in miniature swine. Contralateral teeth were used as controls. The experimental teeth exhibited mucogingival defects at 3 and 6 month observation periods. The secondary teeth erupting into the experimental regions also exhibited recession and chronic mucogingival defects. The marginal tissue in regions devoid of keratinized gingiva demonstrated clinical signs of inflammation. No progressive gingival recession was present. Excision of keratinized gingiva to produce mucogingival defects in swine provides a convenient model system for evaluating the effect of dental procedures on periodontal health where little or no keratinized gingiva is present.
Assuntos
Gengiva/anatomia & histologia , Doenças da Gengiva/etiologia , Animais , Doença Crônica , Doenças da Gengiva/patologia , Gengivectomia , Queratinas/metabolismo , Estudos Longitudinais , Masculino , Suínos , Porco MiniaturaAssuntos
Periodontite Agressiva/microbiologia , Bactérias/efeitos dos fármacos , Gengiva/microbiologia , Doenças Periodontais/microbiologia , Hipoclorito de Sódio/farmacologia , Adolescente , Periodontite Agressiva/terapia , Bactérias/citologia , Criança , Placa Dentária/microbiologia , Humanos , Curetagem SubgengivalRESUMO
In order to determine the status of Coronary Care Unit activity in California hospitals, especially as it pertains to nurse training, a survery was conducted by the California State Department of Public Health. More than 95 percent of hospitals that were questioned responded. Only one-third of the hospitals reported they neither had a unit nor plans to build one. All units in operation were either directed by an individual medical director or by a Coronary Care Unit Committee. The survey indicated that in some hospitals with operational units, nurses were not permitted to perform life-saving resuscitative procedures. All operational units reported in-service education programs of some type. Many hospitals indicated they would like to have Coronary Care Unit training programs to which they could send nurses. The reasons why nurses may not perform important resuscitative procedures are discussed as well as the need for Coronary Care Unit training programs for both physicians and nurses in California.