Vitamin C is a water soluble vitamin found in many natural sources, citric fruits, vegetables, particularly as antioxidants and as a factor to catabolism and metabolism. The aim of this article is to correlate the lev...Vitamin C is a water soluble vitamin found in many natural sources, citric fruits, vegetables, particularly as antioxidants and as a factor to catabolism and metabolism. The aim of this article is to correlate the level of vitamin C and the hydroxyproline level in urine samples among young palestinian children from age 5 - 14 years. Materials and Methods: Urine samples of 34 individuals of both sexes, their ages ranged from 5 - 14 years were collected and analyzed for determination of Urinary Hydroxyproline by using Modified Neuman and Logan Method. The result of this study shows a significant correlation between Vitamin C and Hydroxyproline at level 0.01. The conclusion of this study was that low vitamin C intake was found among young palestinian children from age 5 - 14 years, Vitamin C should be supplemented in the drinks taken by young palestinian children from age 5 - 14 years as well as further research and investigation with large samples required to include all children from middle and southern Palestine.展开更多
There is a wide range of opinions on the best time to start orthodontic treatment but the vast majority is carried out on children who have lost all their baby (deciduous) teeth and have most of their adult teeth (exc...There is a wide range of opinions on the best time to start orthodontic treatment but the vast majority is carried out on children who have lost all their baby (deciduous) teeth and have most of their adult teeth (except for wisdom teeth) present in the mouth. Stability of orthodontic discrepancy is one of the most important factors that determine when start orthodontic treatment of the dentofacial deformaties. This paper threw light on stability of orthodontic discrepancy, its classification, comparing between stable versus unstable orthodontic discrepancy and its impact on the timing of orthodontic treatment.展开更多
Premature contact is one of the most well-known occlusion disorders and can interfere mandibular movement remarkably. The masticatory system has ability to respond with the wide range of adaptive modalities. These ada...Premature contact is one of the most well-known occlusion disorders and can interfere mandibular movement remarkably. The masticatory system has ability to respond with the wide range of adaptive modalities. These adaptations can be functional, structural and/or behavioral. Therefore, this system, like any biological system, cannot be viewed as a rigid and immutable. This paper presents a clinical case which is demonstrating orthodontic management of occlusal prematurity in early mixed dentition by using a protrusive arch wire.展开更多
Bilateral Controversy in orthodontic science is widely present in different patterns;one of the most common is the debate between early versus late orthodontic treatment. This paper is going to demonstrate two clinica...Bilateral Controversy in orthodontic science is widely present in different patterns;one of the most common is the debate between early versus late orthodontic treatment. This paper is going to demonstrate two clinical cases of class III malocclusion which are treated orthodontically, one in early mixed dentition and the other in permanent dentition. The face is highly capable to adapt to the changes achieved by orthodontics provided the earlier treatment begins, the more the face adapts to our standards;the later treatment begins, the more our standards have to adapt to the face.展开更多
Ectopic eruption is the abnormal eruption of a permanent tooth that often causes root resorption of an adjacent primary tooth which can be noted during routine dental radiographic evaluation. The mesial eruption of th...Ectopic eruption is the abnormal eruption of a permanent tooth that often causes root resorption of an adjacent primary tooth which can be noted during routine dental radiographic evaluation. The mesial eruption of the permanent first molar may be a local eruption problem or may indicate developmental arch circumference deficiency requiring further consideration. Early treatment is mandatory to move the ectopically erupting tooth away from the tooth it is resorbing to allow the tooth to erupt into its normal position, maintaining a normal arch circumference. Although much has been written about ectopic eruption of the maxillary first permanent molar, no case report mentions correction of ectopically erupted maxillary permanent first molar by using double loop stainless steel.展开更多
The purpose of this study was to compare the dentoalveolar changes produced when using two different intraoperative surgical procedures for maxillary distraction osteogenesis. Eight patients were assigned into two gro...The purpose of this study was to compare the dentoalveolar changes produced when using two different intraoperative surgical procedures for maxillary distraction osteogenesis. Eight patients were assigned into two groups according to the surgical procedure: down-fracture (DF, n = 6) vs non-down-fracture (NDF, n = 2). Lateral cephalograms and 3-D models before and after maxillary distraction were analyzed. The Mann-Whitney U test was used to compare the differences in the amounts of advancement and dento-alveolar changes between the DF and NDF groups. The significance level was established at 0.05. Although a significantly greater amount of maxillary movement was observed in the DF group (10.0 mm ± 2.2) than in the NDF group (5.9 mm ± 2.3), significantly greater arch length (8.7 mm ± 5.2) and arch width changes (6.0 mm ± 1.0) were observed in the NDF group than in the DF group, (arch lengths 3.0 mm ± 1.1 and arch width changes 3.2 mm ± 2.0). A significantly greater amount of dental anchorage loss was observed in the NDF group. The use of the NDF procedure resulted in greater amounts of dental anchorage loss than resulted from the DF procedures when tooth-borne devices were used during maxillary distraction osteogenesis. The type of surgical procedure might play an important role in the amount and direction of the dental changes.展开更多
Timing of orthodontic treatment especially for children with developing Class III malocclusions has always been somewhat controversial. Pseudo class III malocclusion is recommended to be treated early as this type of ...Timing of orthodontic treatment especially for children with developing Class III malocclusions has always been somewhat controversial. Pseudo class III malocclusion is recommended to be treated early as this type of malocclusion doesn’t diminish with age. Untreated pseudo class III may lead to serious problems. The case report describes pseudo class III in primary dentition successfully treated by using Protrusive Arch Wire.展开更多
Subcutaneous emphysema in the head and neck is a well known clinical condition. It is an uncommon clinical complication of dental treatment caused by forceful injection of air into the loose connective tissue below th...Subcutaneous emphysema in the head and neck is a well known clinical condition. It is an uncommon clinical complication of dental treatment caused by forceful injection of air into the loose connective tissue below the dermal layer. The trapped air is often limited by subcutaneous space in the head and neck. This paper presents a clinical case in which subcutaneous emphysema developed immediately during surgical extraction of third molar.展开更多
文摘Vitamin C is a water soluble vitamin found in many natural sources, citric fruits, vegetables, particularly as antioxidants and as a factor to catabolism and metabolism. The aim of this article is to correlate the level of vitamin C and the hydroxyproline level in urine samples among young palestinian children from age 5 - 14 years. Materials and Methods: Urine samples of 34 individuals of both sexes, their ages ranged from 5 - 14 years were collected and analyzed for determination of Urinary Hydroxyproline by using Modified Neuman and Logan Method. The result of this study shows a significant correlation between Vitamin C and Hydroxyproline at level 0.01. The conclusion of this study was that low vitamin C intake was found among young palestinian children from age 5 - 14 years, Vitamin C should be supplemented in the drinks taken by young palestinian children from age 5 - 14 years as well as further research and investigation with large samples required to include all children from middle and southern Palestine.
文摘There is a wide range of opinions on the best time to start orthodontic treatment but the vast majority is carried out on children who have lost all their baby (deciduous) teeth and have most of their adult teeth (except for wisdom teeth) present in the mouth. Stability of orthodontic discrepancy is one of the most important factors that determine when start orthodontic treatment of the dentofacial deformaties. This paper threw light on stability of orthodontic discrepancy, its classification, comparing between stable versus unstable orthodontic discrepancy and its impact on the timing of orthodontic treatment.
文摘Premature contact is one of the most well-known occlusion disorders and can interfere mandibular movement remarkably. The masticatory system has ability to respond with the wide range of adaptive modalities. These adaptations can be functional, structural and/or behavioral. Therefore, this system, like any biological system, cannot be viewed as a rigid and immutable. This paper presents a clinical case which is demonstrating orthodontic management of occlusal prematurity in early mixed dentition by using a protrusive arch wire.
文摘Bilateral Controversy in orthodontic science is widely present in different patterns;one of the most common is the debate between early versus late orthodontic treatment. This paper is going to demonstrate two clinical cases of class III malocclusion which are treated orthodontically, one in early mixed dentition and the other in permanent dentition. The face is highly capable to adapt to the changes achieved by orthodontics provided the earlier treatment begins, the more the face adapts to our standards;the later treatment begins, the more our standards have to adapt to the face.
文摘Ectopic eruption is the abnormal eruption of a permanent tooth that often causes root resorption of an adjacent primary tooth which can be noted during routine dental radiographic evaluation. The mesial eruption of the permanent first molar may be a local eruption problem or may indicate developmental arch circumference deficiency requiring further consideration. Early treatment is mandatory to move the ectopically erupting tooth away from the tooth it is resorbing to allow the tooth to erupt into its normal position, maintaining a normal arch circumference. Although much has been written about ectopic eruption of the maxillary first permanent molar, no case report mentions correction of ectopically erupted maxillary permanent first molar by using double loop stainless steel.
文摘The purpose of this study was to compare the dentoalveolar changes produced when using two different intraoperative surgical procedures for maxillary distraction osteogenesis. Eight patients were assigned into two groups according to the surgical procedure: down-fracture (DF, n = 6) vs non-down-fracture (NDF, n = 2). Lateral cephalograms and 3-D models before and after maxillary distraction were analyzed. The Mann-Whitney U test was used to compare the differences in the amounts of advancement and dento-alveolar changes between the DF and NDF groups. The significance level was established at 0.05. Although a significantly greater amount of maxillary movement was observed in the DF group (10.0 mm ± 2.2) than in the NDF group (5.9 mm ± 2.3), significantly greater arch length (8.7 mm ± 5.2) and arch width changes (6.0 mm ± 1.0) were observed in the NDF group than in the DF group, (arch lengths 3.0 mm ± 1.1 and arch width changes 3.2 mm ± 2.0). A significantly greater amount of dental anchorage loss was observed in the NDF group. The use of the NDF procedure resulted in greater amounts of dental anchorage loss than resulted from the DF procedures when tooth-borne devices were used during maxillary distraction osteogenesis. The type of surgical procedure might play an important role in the amount and direction of the dental changes.
文摘Timing of orthodontic treatment especially for children with developing Class III malocclusions has always been somewhat controversial. Pseudo class III malocclusion is recommended to be treated early as this type of malocclusion doesn’t diminish with age. Untreated pseudo class III may lead to serious problems. The case report describes pseudo class III in primary dentition successfully treated by using Protrusive Arch Wire.
文摘Subcutaneous emphysema in the head and neck is a well known clinical condition. It is an uncommon clinical complication of dental treatment caused by forceful injection of air into the loose connective tissue below the dermal layer. The trapped air is often limited by subcutaneous space in the head and neck. This paper presents a clinical case in which subcutaneous emphysema developed immediately during surgical extraction of third molar.
