Muhammad Fawwaz Orabi - Academia.edu (original) (raw)
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Papers by Muhammad Fawwaz Orabi
Introduction: Requirements for more aesthetic solutions have seen an increased demand by orthodon... more Introduction: Requirements for more aesthetic solutions have seen an increased demand by orthodontic patients recently. Fixed lingual appliances provide the perfect aesthetic aspect, although it requires a highly-skilled orthodontist due to the fact that mispositioning of a lingual bracket has a more noticeable impact on the resulting tooth movements compared to traditional straight-wire appliances. The choice of material for the archwire used for retraction is one of the factors that have an impact on the tipping of the anterior segment. Aims: The aim of the study was to analyze a 3D finite elements model of a maxilla after removing the upper first premolars, simulating en-masse retraction of the anterior segment using a fixed lingual orthodontic appliance, with different wire materials: stainless steel (SS) and titanium-molybdenum alloy (TMA). Materials and Methods: A 3D model for the maxilla, the upper teeth and the PDL was constructed. The first upper molars were removed and a f...
International Journal of Applied Dental Sciences, 2020
Introduction: The local anesthetic used in dental anesthesia is considered a painful procedure to... more Introduction: The local anesthetic used in dental anesthesia is considered a painful procedure to the majority of patients, it is known that the intraoral injection is one of the most common reasons why patients escape treatment and that is due to the acidic nature of the anesthetic agent which in turn may delay the onset of anesthesia. Materials & Methods: The local anesthetic used for dental anesthesia is one of the most common reasons patients avoid undergoing certain treatments. This may be attributed to the acidic, irritating nature of the anesthetic which in turn may lead to a delayed onset of anesthesia. In this retrospective study, 2% lidocaine with 1:80000 epinephrine buffered with 8.4% sodium bicarbonate (1:10) was evaluated for its effects on the onset time as well as pain response and the duration of anesthesia. 15 patients were injected with the anterior infra-orbital injection and IANB injection with and without buffering with sodium bicarbonate. Results: Anesthesia on...
Introduction: Requirements for more aesthetic solutions have seen an increased demand by orthodon... more Introduction: Requirements for more aesthetic solutions have seen an increased demand by orthodontic patients recently. Fixed lingual appliances provide the perfect aesthetic aspect, although it requires a highly-skilled orthodontist due to the fact that mispositioning of a lingual bracket has a more noticeable impact on the resulting tooth movements compared to traditional straight-wire appliances. The choice of material for the archwire used for retraction is one of the factors that have an impact on the tipping of the anterior segment. Aims: The aim of the study was to analyze a 3D finite elements model of a maxilla after removing the upper first premolars, simulating en-masse retraction of the anterior segment using a fixed lingual orthodontic appliance, with different wire materials: stainless steel (SS) and titanium-molybdenum alloy (TMA). Materials and Methods: A 3D model for the maxilla, the upper teeth and the PDL was constructed. The first upper molars were removed and a f...
International Journal of Applied Dental Sciences, 2020
Introduction: The local anesthetic used in dental anesthesia is considered a painful procedure to... more Introduction: The local anesthetic used in dental anesthesia is considered a painful procedure to the majority of patients, it is known that the intraoral injection is one of the most common reasons why patients escape treatment and that is due to the acidic nature of the anesthetic agent which in turn may delay the onset of anesthesia. Materials & Methods: The local anesthetic used for dental anesthesia is one of the most common reasons patients avoid undergoing certain treatments. This may be attributed to the acidic, irritating nature of the anesthetic which in turn may lead to a delayed onset of anesthesia. In this retrospective study, 2% lidocaine with 1:80000 epinephrine buffered with 8.4% sodium bicarbonate (1:10) was evaluated for its effects on the onset time as well as pain response and the duration of anesthesia. 15 patients were injected with the anterior infra-orbital injection and IANB injection with and without buffering with sodium bicarbonate. Results: Anesthesia on...