Biomedical subjects

Christian Zahl

Publications and source records attributed to Christian Zahl.

3 recordsLinked to original sources

PubMed2006

Resorbable poly(D,L)lactide plates and screws for osteosynthesis of condylar neck fractures in sheep.

We made osteotomies in the condylar neck in 12 adult sheep to simulate fractures, and joined the two ends with 2 poly(D,L)lactide (PDLLA) plates and 8 PDLLA screws 2mm in diameter. The animals were killed after 2, 6, and 12 months and bony healing was assessed macroscopically and histologically. The plates and screws remained intact and there was no displacement of the bony ends. The degrading plates, which were still visible in the specimens after 6 months, had been replaced by bone. At 12 months the PDLLA had been resorbed with no foreign body reaction and no resorption of underlying bone. The articular discs showed no signs of degeneration.

Absorbable Implants↗

PubMed2005

Surgically assisted rapid palatal expansion using a new distraction device: report of a case with an epimucosal fixation.

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Adult↗

PubMed2003

Transversal palatal expansion using a palatal distractor.

METHOD AND RESULTS: The method and first results of transversal expansion with a palatal distractor in adolescents and adults with transverse maxillary deficiencies are presented. In ten patients with a mean age of 25.8 years, a newly developed distractor was applied for bone-borne expansion of the two halves of the maxilla following osteotomy of the lateral walls of the maxillary sinuses and the midpalatal suture. After a 3-week distraction period, mean changes of 8.8 mm in intercanine distance (ICD), 8.6 mm in anterior dental arch width (ADA), and 8.3 mm in posterior dental arch width (PDA) were registered. 6 months after the subsequent multibracket appliance therapy, these values were found to be largely constant. CONCLUSION: Because of the short treatment period, the absence of relapses, and the handling simplicity for the patient, this method is recommended for clinical application.

Adolescent↗