[Clinical comparative study of local anesthetics. Random double blind study with four commercial preparations]. / Klinische Vergleichsuntersuchung von Lokalanästhetika. Eine randomisierte Doppelblindstudie mit vier Handelspräparaten.

In a randomized double blind study effects and tolerability of the local anesthetics Prilocaine 3% with Felypressin, Articaine 4% with Epinephrine 1/200,000 and 1/100,000, and Lidocaine 2% with Epinephrine 1/100,000 were tested. There was no significant difference between the four agents as far as effect on blood pressure, pulse, and tissue rehabilitation are concerned. Prilocaine can be used for extractions and surgical tooth removal. It can not be recommended for apicoectomy or implantation. The better results of Articaine 4% compared to Lidocaine 2% were statistically not significant.

[Introduction of diagnostic statistics in accord with section 16 of the Federal Ordinance for Hospitalization Cost Rates (BPflV). Basic documentation for the clinical branch of oral and maxillofacial surgery]. / Einführung der Diagnosestatistik nach #16 Bundespflegesatzverordnung (BPflV). Basisdokumentation für das klinische Fach Mund-, Kiefer-, Gesichtschirurgie.

In 1984 a first diagnosis and treatment code was developed for the computer documentation of patient data at the clinical department for oral and maxillofacial surgery of the Münster University Hospital. After a long time of testing and improving in day-by-day practical use, it today includes a total of 126 diagnoses and 169 forms of treatment. When in 1986 the Federal Ordinance for Hospitalization Cost Rates came into power, this documentation system had to be re-coded to comply with ICD 9 and, at the same time, a documentation sheet had to be developed that would meet both the necessary scientific standards and the given administrative criteria. In this paper a documentation sheet is presented that fulfills both requirements and, by virtue of its simplicity, avoids almost any loss of data.