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PURPOSE: The purpose of this study was to analyze electrocardiographic alterations during dental implant surgeries when local anesthetic agents were used. MATERIALS AND METHODS: Twenty implants were placed in 18 healthy patients. An electrocardiogram and Wincardio software were used to gather recordings from 12 static leads every 2 minutes, continuously record coronary artery (D2) derivations, and automatically measure the following electrocardiographic parameters: heart rate, duration and amplitude of the P wave, PR segment duration, ST segment deviation, QRS complex duration, and duration of the RR, QT, and corrected QT (QTc) intervals. RESULTS: Analysis of variance of the values obtained at the different stages showed significant differences (P<.05) for the heart rate and for the duration of the RR and QT intervals. The heart rate increased during the anesthesia, incision, and bone drilling stages, reaching a peak during drilling. Duration of the RR and QT intervals decreased during the incision and drilling stages. Among the electrocardiographic parameters individually assessed, several altered values were found for the duration of the P wave, the QRS complex, and the QT and QTc intervals. Sinusal tachycardia and bradycardia, sinusal arrhythmia, supraventricular extrasystole, ventricular extrasystole, and T-wave inversion were detected. CONCLUSION: Dental implant placement surgery may induce electrocardiographic alterations. The most frequently found arrhythmias were extrasystole and sinusal tachycardia. The anesthesia, incision, and bone drilling stages exhibited the highest heart rate values and the shortest durations of the RR and QT intervals. [ABSTRACT FROM AUTHOR]

Floating-Harbor syndrome is a rare genetic disorder of unknown aetiology. It was described for the first time in 1973. The syndrome is characterized mainly by short stature, delay in speech development and characteristic facial features. This article describes a report of a case of the syndrome and emphasizes the oral aspects, including descriptions of soft tissues, teeth, occlusion, stage of dental development and findings on examination of the temporomandibular joint. The treatment provided and its outcome is also described. Hopefully this information will be compared with findings from other patients in the future to assist in clarifying the phenotype of the Floating-Harbor syndrome. [ABSTRACT FROM AUTHOR]