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Register a new userA Preliminary Study of Treatment of Pigmented Gingiva by CO2 Laser ( clinical study )
دراسة مبدئية لاستخدام الليزر CO2 في معالجة التصبغ اللثوي ( دراسة سريرية )
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شريف الأشقر( باحث )
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تشكل التصبغات اللثوية آفة تجميلية حقيقية للمريض و خاصة المرضى الذين يملكون ابتسامة لثوية، و تشكل الحالة هذه تحديًا كبيرًا للطبيب المعالج لصعوبة التعامل مع هذه المشكلة التي تقع في منطقة حساسة نسيجيًا و اجتماعيًا. حديثًا دخلت إلى عالم طب الأسنان تقانة متطورة هي أشعة الليزر بأنواعها المختلفة و التي قدمت نوعًا مختلفًا من المعالجات تختلف عن المعالجات التقليدية المتبعة منذ عقود. استخدمت فيما مضى العديد من الطرائق لمعالجة التصبغات اللثوية كان لكل منها حسناته و مساوئه. في دراستنا هذه سوف نحاول في معالجة التصبغات اللثوية و دراسة مدى فعالية هذه CO2 الاستفادة من أشعة ليزر الأشعة سريريًا في هذا النوع من المعالجات. علمًا أّنها من التقانات الحديثة و التي تطبق للمرة الأولى في القطر العربي السوري.
Human gingival pigmentation cause esthetic problems and embarrassment, especially in women and patients with a gummy smile. This study was performed to see the effect and the clinical influence of CO2 laser on pigmented gingiva. This new technique performed for the first time in Syria.
References used
Amir E,Gorsky M,Buchner A,etal.Physiologic oral pigmentation of the oral mucosa.surg oral med,Mar,71(3):396-8.1991
Prinz H.pigmentation of the oral mucous membrane.Dental cosmos,72;554-561.1932
Dummet Co,Barnes G,oral mucosal pigmentation.an update literary review.J Periodontal,42(11):726-736.1971
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Objective: to study and evaluate the surgical operative process in the management of
Benign Tumors and Leukoplakia in the Oral Cavity by using Laser CO2.
Materials and methods: a total of 18 patients (10 males and 8 females) with mean age
50 years
, and diagnosed with Benign tumorous Lesions or Leukoplakia on mucosa of the
oral cavity, were treated by Vaporization by using CO2 Laser in Al-Assad university
hospital. The postoperative complications were recorded within 7 days after the surgery,
and the wounds was assigned until entire healing.
Results: 8(44%) patients had week pain after 24 hour of surgery, and reduced to
2(11%) patients in the third day. Edema was seen by 8(44%) patients after 24 hour of
surgery, and reduced to 1(6%) patient in the third day.5 (28%) patients showed disturbance
within oral functions, and became 1(6%) patient in the third day. No complications were
seen after 7 days of surgery. No infection or bleeding were recorded within following
time.no statistically significant differences between Lesion kind and pain degree, and no
relationship between Pain degree and Disturbance of the Lesions. Entire healing was
satisfactory in all Wounds and no scar were seen .
Conclusion: CO2 Laser is effective method in manage and minimize the
complications during Healing process after the management of Benign Tumors and
Leukoplakia in oral cavity.
Several methods have been introduced to treat inflammatory
gingival enlargement including laser, electrocautery, and surgical
scalpel which is the standard method adopted. Recently, however,
ceramic bur has emerged as a simple and rapid tool for
gingivectomy
The aim of this study was to evaluate and compare gingivectomy
by using ceramic bur and traditional gingivectomy by using
surgical scalpel.
There are wide uses of tin oxide thin films, especially in the field of
transparent conductors, solar cells, gas sensors and piezoelectric materials.
Laser deposition is considered one of the most important techniques followed to
obtain these film
s. In this research, we develop a technique to obtain
homogeneous thin films of tin oxide depending on vaporization of pile targets of
this oxide by continuous CO2 laser in the atmosphere, with a fan which
guarantees obtaining homogenous films. Some of these films were annealed in
different conditions. The optical microscope images revealed the presence of
high degree of homogeneity, while the X-Ray study showed different
crystallization grain orientations which depend on the preparation conditions.
The preferred direction is (110). The optical absorption gives information
about the value of the effective band gal for the samples before and after
thermal annealing. We have found that some films have Eg = 3.2 ev. before
annealing, and after long annealing they have Eg=1.3ev. In addition, the hard
annealed thin films reveal anisotropy in the optical and electrical.
Characteristics, they have different absorption coefficients in two
perpendicular directions, also there is an electrical resistance anisotropy along
these two directions especially after hard annealing. The Eb was 0.73 ev before
annealing, it became 0.37 ev for one direction and 0.32 ev for the other
direction.
The aim of this study is to evaluate the clinical outcomes (pain P ,
joint sounds JS , and diversion in the mandibular movement DMM)
of treatment of anterior displacement of articular disc via injection of
PRP. The sample consisted of 40 patients
who referred to the faculty
of dentistry with unilateral anterior displacement of articular disc
with pain P , joint sounds JS , and diversion in the mandibular
movement DMM.
furcation involvement occurs in the term of chronic periodontitis, and gives the
involved tooth worse prognosis, so that it represents a problem for diagnosis and treatment. The aim of
this study was to compare clinically the surgical treatment of
second degree- furcal involvement in
mandiblur molars (that each of them has one furcation), using Er:YAG laser versus conventional surgery.
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