Frank Mascha

• Dr. med. Dr. med. dent. MBA FEBOMFS
• Specialist in own Practice at MASCHA & ROSSKOPF - Kempten & Oberallgäu

Study Design The aim of this study was to evaluate the accuracy of 3-dimensional (3D)-planned maxillary positioning by using computer-assisted design (CAD)/computer-assisted manufacturing (CAM) splints combined with temporary mandibular fixation in bimaxillary orthognathic surgery. In orthognathic surgery, customized splints work sufficiently well...

Zur Rekonstruktion nach Kontinuitätsresektion des Unterkiefers kommen vermehrt patientenspezifische Implantate (PSIs) zum Einsatz. Sie können sowohl für rein alloplastische als auch komplexe mikrovaskulär-knöcherne Rekonstruktionen angewandt werden. Hierbei bieten sie multiple Vorteile im Vergleich zu den konfektionierten, handgebogenen Plattensyst...

Introduction: The aim of the study was to investigate possible predictive factors influencing the long-term success of root tip resection. Methods: The retrospective study included 216 patients (♂ 111, ♀ 106, median age 43.3 years). A total of 261 root tip resections were performed on these patients between 1989 and 2012. In addition to determining...

The satisfactory management of post-enucleation socket syndrome is a major challenge. In addition to enophthalmos and hypophthalmos, the appearance of the supratarsal fold is frequently unsatisfactory. Using a combination of orbital volume reduction by means of custom wave-shaped CAD/CAM implants (1), the implantation of a dermis-fat graft (2), and...

Objectives It was the aim of the study to analyse the prevalence of maxillofacial trauma (MFT) in severely injured patients after road traffic accidence (RTA) and to investigate associated factors. Materials and methods In a retrospective study, data from patients after RTA by the TraumaRegister DGU® from 1993 to 2014 were evaluated for demographic...

Einleitung: Die Rekonstruktionsgenauigkeit von Unterkieferrekonstruktionen mit computerassistiert geplant und gefertigten Rekonstruktionsplatten unter Anwendung von Operationsschablonen wurde mittlerweile in klinischen Studien untersucht. Hier konnten Ungenauigkeiten Plan versus postoperatives Ergebnis im Median von 0,8 mm bis 2,5 mm und im Maximum...

Der Squamöse (plattenepitheliale) Odontogene Tumor (SOT) ist mit 110 in der englischsprachigen Literatur beschriebenen Fällen ein sehr seltener gutartiger odontogener Tumor. Die Läsion findet sich meist uni-aber auch multizystisch im Bereich des Parodonts bleibender Zähne. Der Unterkiefer scheint häufiger betroffen zu sein als der Oberkiefer. Assoz...

Einleitung: Der Nutzen intraoperativer 3D-C-Bogen Bildgebung zur Stellungskontrolle bei Mittelgesichts- und Orbitawandfrakturen konnte mittlerweile nachgewiesen werden. Eine umfangreiche Studie zur applizierten Strahlendosis durch solche 3D-C-Bögen im Vergleich zu einer CT oder DVT ist bis dato jedoch nicht publiziert. Ziel der Untersuchung war des...

Background: A new method in mandible reconstruction has recently been developed using patient-specific mandible reconstruction plates (PSMP) after preoperative computer planning using CAD/CAM procedures. To transfer the virtual planned position of the PSMP into the intraoperative situs resection margins and plate position is determined by using su...

Computer-assisted planning and surgery for the treatment of orthognathic deformities have been extensively documented over the last decade. Computerized and customized wafers have lacked to improve the accuracy of maxillary positioning, resulting in a draw back of computer-assisted orthognathic surgery. The aim of this study was to determine the ac...

Die Standardmethode zur Unterkieferrekonstruktion weist hinsichtlich Genauigkeit, Stabilität und Formgebung der Mandibula in vielen Fällen deutliche Schwächen auf. Deshalb wurde ein Verfahren entwickelt, welches mittels vollständig computerbasierter virtueller Operationsplanung auf Grundlage von radiologischen Bilddaten eine Unterkieferrekonstrukti...

Background: Computer-assisted three-dimensional (3D) planning combined with computer-aided design/computer-aided manufacturing (CAD/CAM)-wafers is more and more common in orthognathic surgery. Nevertheless, the adjustment of the vertical position of the maxilla still stays difficult with this method. Fixation of the mandible to the zygoma using ost...

Background: Computer-assisted three-dimensional (3D) planning combined with computer-aided design/computer-aided manufacturing (CAD/CAM)-wafers is more and more common in orthognathic surgery. Nevertheless, the adjustment of the vertical position of the maxilla still stays difficult with this method. Fixation of the mandible to the zygoma using ost...

Zur alloplastischen Unterkieferrekonstruktion nach Kontinuitätsresektion werden heutzutage meist winkelstabile Rekonstruktionsplatten verwendet. Ein intraoperatives Anbiegen der Platte stellt nach wie vor die Standardmethode dar (ST). Eine Erweiterung dieser Methode ist das präoperative Vorbiegen der Platte auf Basis eines patientenspezifischen 3D-...

Introduction: Root amputation (RA) is a well established method for tooth preservation. Aim of this retrospective study was the identification und investigation of parameters which are influencing the long-term result after root amputation. Methods: 216 patients (♂ 111, ♀ 106) on which in total 261 root amputations were performed could be included...

Introduction: An increase in transverse maxillary width can be facilitated using tooth-borne, bone-borne or combined tooth-bone-borne appliances. The advantage of bone-supported expansion is the direct transfer of the expansion forces on to the bone, thus leading to a reduction in the negative side effects such as buccal tipping of the anchor teeth...

Objectives: For mandibular reconstruction after continuity resection most centers use angular-stable reconstruction plates today. However, a multiplicity of plate systems are available on the market which differ concerning to their angular-stable connection between screw head and plate. The aim of the present study was the investigation of reconstr...

Introduction: The diffuse sclerosing osteomyelitis (DSO) of the mandible is characterized by recurrent pain of the jaw and swelling of the surrounding soft tissues. The final understanding of the etiology of this disease is still unclear. The symptoms seem often to be recurrent. During the last years some promising reports and small series about ef...

Purpose: During the repair of zygomatico-orbital complex (ZMC) fractures, the lateral orbital wall and/or the orbital floor is often reduced by merely reducing the zygoma. Intraoperative 3D imaging can help surgeons decide whether the orbit must be reconstructed as well. The purpose of this study was therefore to assess the usefulness of intraoper...

Introduction: Patients with Osteogenesis Imperfecta (OI) suffer from severe fracturing due to minor injuries. Even the facial bones are frequently affected. As a medicinal basis, Bisphosphonate is administered intravenously to prevent fracturing. This procedure is standard in cases of Osteogenesis Imperfecta. It results not only in an increase in b...

Beschrieben wird der Fall eines 16-jährigen Patienten mit Unterkiefermehrfachfraktur nach Fahrradsturz. Beim Patienten liegt eine Osteogenesis Imperfecta (OI) vor, in deren Folge der Patient bereits rezidivierend Frakturen an den Extremitäten erlitten hatte. Als Basismedikation wurde dem Patienten in den vorangegangenen zwei Jahren intravenös Bisph...

Percutaneous vascular interventions lead inevitably to a destruction of the endothelial lining at the site of injury. There are conflicting data on the therapeutic benefit of hematopoietic growth factors aiming at mobilisation of circulating endothelial cells to accelerate the reendothelialisation process. Aim of our study was to evaluate the impac...