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Article
The Skeletal and Soft Tissue Facial Profile in Adolescent and Adult

Author: Saba H Al-Zubaidi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2009 Volume: 9 Issue: 13 Pages: 149-155
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To evaluate the norms for several cephalometric soft tissue measurements and to investigate
differences in the mean values of these measurement between two age groups (11–14 and 18–25) and
between two gender. Materials and Methods: The adolescent sample consists from 30 subjects (15 for
each gender) with age range from 11 –14 years. The adult sample consists from 30 subjects (15 for
each gender) with age range 18–25 years. The two groups satisfying the criteria of balance facial profile,
class I molar relation ship and normal over bite–over jet relation ship. Ten skeletal and soft tissue
measurements were obtained from tracing lateral cephalometric radiograph. The data was analyzed
using descriptive statistic and student t– test. Results: During adolescence, no significant differences
were found between males and females. During adulthood, the males having higher values for all measurements
(except nasolabial and mentolabial angles) but statistically not significant. From adolescent
to adult males, the angles of facial convexity, Z– angle in addition to lower lip length and nasal depth
are significantly different with the adult male having the higher value. For females, the lower lip length
and nasal depth significantly higher in the adult period. Conclusions: The adult males having relatively
straighter facial profile. In addition, Z– angle also greater in the adult males than during adolescence.
For both genders, the nasal depth and the vertical height of lower lip were significantly greater in
adults.

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Article
Effect of Tooth Paste and Mouth Wash on Brackets Dimension

Author: Saba H Al–Zubaidi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2010 Volume: 10 Issue: 16 Pages: 292-297
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To evaluate whether dimensions of the brackets change due to corrosion when immersed in tooth paste and mouth wash at different intervals of immersion (1, 14 and 30 days). Materials and Methods: Three groups of bracket (ten for each), the first group is the control group. The second group immersed in tooth paste (Anber– Iraq) for one minute three times daily then removed and washed in distill water, dried and be ready for testing nine dimensions of the bracket at three intervals (1, 14, and 30 days). The same procedure was repeated for the third group that was immersed in mouth wash (chlorhexidine). The data was analyzed using Descriptive statistic, analysis of variance (ANOVA) at p≤0.05. These data were then analyzed by the Duncan multiple analysis range test to locate the signifi-cant differences among the groups. Results: The bracket base length showed a significant difference among the control and the immersed brackets in mouth wash. The bracket base length, wing length and wing width showed a significant differences among the control and the immersed brackets in tooth paste. Conclusions: when immersing the brackets in tooth paste and mouth wash no significant dimen-sional changes occurred in bracket's dimension except for the bracket base length of the brackets im-mersed in mouth wash and the bracket base length, wing length and width of brackets immersed in tooth paste that showed significant changes among the groups.

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Article
The Effect of Insertion Angle on Primary Stability of Orthodontic Mini-implants "An Experimental in vivo Study"

Author: Saba H Al–Zubaidi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2013 Volume: 13 Issue: 22 Pages: 327-332
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To determine whether obliquely inserted mini-implants can be loaded immediately with light orthodontic force? And which mini-implants are more stable those with 90 degree or 60 degree insertion angles? Materials and Methods: three rabbits were used in this study. Sixteen mini-implants divided into 2 groups equally. The first group implanted in the rabbit’s tibia bone at 90 degree insertion angle and the second group implanted in the rabbit’s tibia bone at 60 degree insertion angle. The stability of mini-implants was measured using periotest device immediately before and after loading and after 2 weeks of loading period. The data were analyzed using descriptive statistic, Analysis of variance (ANOVA), Duncan Multiple analysis range test and student t-test. Result: mini-implants at 60 degree insertion angle can be loaded immediately with light orthodontic force. Also, those miniimplants having a significant greater stability before loading and after two weeks of loading period in comparison with mini-implants implanted at 90 degree angle. Conclusions: In clinical practice, miniimplants inclined to the bone surface at 60degree tend to have better primary stability and can be loaded immediately.


Article
The variation of the lower anterior facial height and its component parameters among the three over bite relationships (Cephalometric study)

Authors: Saba H Al–Zubaidi --- Hussain AA Obaidi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2006 Volume: 6 Issue: 8 Pages: 106-113
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To evaluate the genders and over bite subjects group variation for the lower anterior facialheight (LAFH) and its component parameters in Iraqi population in Mosul City. Materials andMethods: The study was performed by using measurements on pretreatment cephalometric radiographsof 79 patients, 27 with normal over bite and 26 for each open and deep over bite. The age ranged from12–16 years with Class I dentoskeletal relationship. Results: The normal over bite group wassignificantly larger maxillary anterior alveolar ratio and the mandibular anterior and basal height inmale when compared with female. Deep bite group appeared significantly larger mandibular anterioralveolar depth in males than in females. The open bite group showed significantly larger interincisalangle in females than in males. Multiple range variation analysis of the lower facial height and itscomponent parameters disclosed no significant differences in these parameters among the over bitegroups except that the open bite group was significantly larger mean value in the LAFH andsignificantly lower mean value in the interincisal angle when compared with normal and deep bitegroups. Conclusion: The significant gender variation of the LAFH and its components of the normalover bite group were appeared in maxillary anterior alveolar depth, ratio and mandibular anterioralveolar height; whereas in deep bite group appeared in mandibular anterior alveolar depth, and in openbite group demonstrated in the interincisal angle.


Article
Three dimensional cephalometric measurements of craniofacial skeleton of adolescent with Class I normal occlusion in Mosul City

Authors: Khidair A Salman --- Saba H Al–Zubaidi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2004 Volume: 4 Issue: 4 Pages: 150-156
Publisher: Mosul University جامعة الموصل

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Abstract

The aims of the present study were to establish the cephalometric craniofacial skeletal norms of Iraqi adolescents by means of linear and angular analyses of postero–anterior and lateral cephalometric radiographs and to reveal any correlation between the variables measured. The sample consisted of 101 Iraqi adolescents (52 males and 49 females) aged 12–15 years with Class I normal occlusion. Postero–anterior and lateral cephalometric radiographs were taken for each adolescent, and twenty cephalometric radiographic measurements (6 angular, 10 linear and 4 ratio) were determined. Skeletal comparison between males and females showed that the angle of palatal plane inclination in relation to anterior cranial base (SN–PP) was significantly higher in females whereas the gonial angle (ArGoMe) was significantly higher in males. For linear measurements, mandibular base length (Go–Gn) showed no significant sex differences. The remaining linear measure-ments showed significant sex differences with the males having higher values. All ratios showed no significant differences between males and females.


Article
Orthodontic Treatment of Unilateral Impacted Complete Transposed Maxillary Canine and Impacted Dilacerated Maxillary central incisor

Authors: Hakam H Sabah --- Saba H. Al–Zubaidi --- Omar H. Alluazy
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2017 Volume: 117 Issue: 29 Pages: 58-67
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: The purpose of this article was to present a case of surgical exposure and orthodontic reposition of impacted dilacerated maxillary left central incisor. Also surgical exposure of impacted maxillary left canine followed by orthodontic treatment of canine-lateral incisor complete transposition. result : this article describe the treatment of a teenager girl who had impactions of the maxillary left central incisor and canine as well as canine-lateral incisor transposition. The dilacerated impacted central incisor was uncovered and orthodonticaly extruded into the dental arch. Then the impacted canine was surgically exposed and orthodonticaly moving the tooth palately then distally to brought it into its normal position. Conclusion : concurrent impaction and transposition of maxillary anterior teeth is uncommon and poses a challenge for the dentist. Early diagnosis and management of eruption disturbances give us both esthetic and functional outcome benefits


Article
A Comparative Assessment of Space Closure Utilizing by Lingual and Conventional Brackets

Authors: Omar H. Alluazy --- Hakam H. Sabah --- Saba H. Al–Zubaidi --- Mustafa M. Al-Sultan
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2014 Volume: 14 Issue: 25 Pages: 220-227
Publisher: Mosul University جامعة الموصل

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Abstract

AIMS:To assess the effect of system type on the amount of space closure when equal force use on each system and to compare the amount of rotation and tipping generated by lingual and conventional brackets. Materials and Methods: A mandibular typodont system with Class I wax form and set of metal teeth were used in this study. After removing the second premolar bilaterally, each tooth of the anterior teeth and canines were bonded with two bracket systems , preadjusted Roth stainless steel 0.022x0.030 inch conventional (labial) brackets (CoBS group) and lingual brackets (LiBS group) except right first premolar were bonded with lingual bracket (LIBS group) and left first premolar were bonded with labial bracket (CoBS group). Bite plane extension bar (BPB) and canine extension bar (CB) were constructed bilaterally for the measurement of first premolars tipping and rotation. A 200gm. of force applied by close coil spring to retract the first premolars bilaterally . After immersion of the typodont in water bath with 50-550 C for 5 minutes, the rate of space closure , tipping and rotation of first premolars were measured. Results: A statistical analysis (independent-samples t-test) used in this study, there was a significant difference between the two system groups (CoBS group and LiBS group). The LiBS group had a significant higher amount of tooth movement, and higher degree of rotation. For the tipping, the CoBS group had the higher level of tipping with a non-significant difference with LiBS group. Conclusions: The outcomes of this study showed that the higher rate of space closure and rotation were associated with LiBS group, while there is a nonsignificant difference in the amount of tipping between the two groups. So, Lingual appliance was appeared to be very effective method for tooth sliding during fixed orthodontic treatment.

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