Displacement of the non-reduction disk with limitation of opening (DDwLO) can be treatment of the non-surgical form. However, it required scientific and clinic knowledge of diagnostic area of the disorders temporomand...Displacement of the non-reduction disk with limitation of opening (DDwLO) can be treatment of the non-surgical form. However, it required scientific and clinic knowledge of diagnostic area of the disorders temporomandibulares. This study was performed with the patient CN, 18 years, white, female, who went to the orofacial pain ambulatory with complaints of extreme pain on the right temporomandibular joint (TMJ) and limitation of maximum opening of 29 mm with shift to right, which she has been suffering for at least three years. After a criterion anamnese the diagnosis hypothesis found was a displacement of the non-reduction disk with limitation of opening. The treatment was based on infiltration in the right TMJ with anesthesic followed by mandibular manipulation. After the therapeutic conduct the patient presented clinical signals of normality with absence of trismus and mandibular movement without shift to right. The patient was followed up during five years not presenting return of the pathology.展开更多
OBJECTIVE: To study the adaptive alterations of elastic fibers in the bilaminar zone (BZ) of rabbit temporomandibular joint (TMJ) following disc displacement. METHODS: Twenty-eight Japanese white rabbits were used in ...OBJECTIVE: To study the adaptive alterations of elastic fibers in the bilaminar zone (BZ) of rabbit temporomandibular joint (TMJ) following disc displacement. METHODS: Twenty-eight Japanese white rabbits were used in this study. The right temporomandibular joints of 20 of 28 rabbits were subjected to the surgical procedure of anterior disc displacement (ADD). Four rabbits in the surgical group were sacrificed at 2, 4, 6, 8 and 12 weeks after operation. Their temporomandibular joints were studied histochemically. RESULTS: Elastic fibers were reduced in number and ran irregularly in the superior lamina of BZ from ADD rabbits. The jungly elastic fibers (EFs) could still be seen at 2 weeks after operation. At 4 weeks, the number of EFs decreased significantly; EFs lost their jungly arrangement and were shaped like rough dots, of which the arrangement and the lengths were different. Six weeks after operation, many EFs were replaced by distorted, uneven, non-oriented fine EFs, distributed unevenly and some thick or fine EFs that ran irregularly. The number of EFs decreased further and their arrangement was more deranged at 8 weeks. At 10 and 12 weeks, EFs in the superior lamina of BZ were similar to those at 8 weeks. CONCLUSION: Our results show that EFs lost their function as well as their distribution and arrangement after disc displacement.展开更多
文摘Displacement of the non-reduction disk with limitation of opening (DDwLO) can be treatment of the non-surgical form. However, it required scientific and clinic knowledge of diagnostic area of the disorders temporomandibulares. This study was performed with the patient CN, 18 years, white, female, who went to the orofacial pain ambulatory with complaints of extreme pain on the right temporomandibular joint (TMJ) and limitation of maximum opening of 29 mm with shift to right, which she has been suffering for at least three years. After a criterion anamnese the diagnosis hypothesis found was a displacement of the non-reduction disk with limitation of opening. The treatment was based on infiltration in the right TMJ with anesthesic followed by mandibular manipulation. After the therapeutic conduct the patient presented clinical signals of normality with absence of trismus and mandibular movement without shift to right. The patient was followed up during five years not presenting return of the pathology.
文摘OBJECTIVE: To study the adaptive alterations of elastic fibers in the bilaminar zone (BZ) of rabbit temporomandibular joint (TMJ) following disc displacement. METHODS: Twenty-eight Japanese white rabbits were used in this study. The right temporomandibular joints of 20 of 28 rabbits were subjected to the surgical procedure of anterior disc displacement (ADD). Four rabbits in the surgical group were sacrificed at 2, 4, 6, 8 and 12 weeks after operation. Their temporomandibular joints were studied histochemically. RESULTS: Elastic fibers were reduced in number and ran irregularly in the superior lamina of BZ from ADD rabbits. The jungly elastic fibers (EFs) could still be seen at 2 weeks after operation. At 4 weeks, the number of EFs decreased significantly; EFs lost their jungly arrangement and were shaped like rough dots, of which the arrangement and the lengths were different. Six weeks after operation, many EFs were replaced by distorted, uneven, non-oriented fine EFs, distributed unevenly and some thick or fine EFs that ran irregularly. The number of EFs decreased further and their arrangement was more deranged at 8 weeks. At 10 and 12 weeks, EFs in the superior lamina of BZ were similar to those at 8 weeks. CONCLUSION: Our results show that EFs lost their function as well as their distribution and arrangement after disc displacement.
