The Lower Lip Position and Incisor Overjet

1975 ◽  
Vol 2 (4) ◽  
pp. 201-205 ◽  
Author(s):  
Sydney Haynes
Keyword(s):  
Clinical Significance ◽  
Central Incisor ◽  
Lower Lip ◽  
Maxillary Central Incisor ◽  
The Mean ◽  
The One

1147 children aged 11–12 years were examined to determine the mean overjet values relative to five defined postural lower lip/maxillary central incisor relationships. A mean overjet of 3·025 mm was found in those children having a postural lower lip position related to the middle third of the maxillary central incisor; and those having no lower lip cover had a mean overjet of 4·26 mm. In contrast, the mean overjet value was 9·18 mm for those children having a “negative” lip position. The observed differences between the mean overjet values relative to each lower lip position are statistically significant, but the only lower lip/maxillary central incisor relationship which appears to have any marked clinical significance is the one defined as—1 (i.e. the trapped lower lip).

Fifteen-year Clinical Follow-up of Restoration of Extensive Cervical Resorption in a Maxillary Central Incisor

2017 ◽  
Vol 42 (2) ◽  
pp. E55-E58 ◽  
Author(s):  
EG Reston ◽  
RPR Bueno ◽  
LQ Closs ◽  
J Zettermann
Keyword(s):  
Root Resorption ◽  
Treatment Options ◽  
Glass Ionomer Cement ◽  
Central Incisor ◽  
Endodontically Treated Teeth ◽  
Maxillary Central Incisor ◽  
External Root Resorption ◽  
Fixed Prosthodontics ◽  
Single Structure ◽  
The One

SUMMARY Internal bleaching in endodontically treated teeth requires care and protection to prevent harm to the periodontal ligament due to peroxide and may result in external root resorption. There is a myriad of treatment options when this occurs, such as monitoring, extraction, and subsequent rehabilitation with implants or fixed prosthodontics. In some cases, such as the one described here, a conservative attempt to maintain the tooth as a single structure can be made by sealing the resorptive defect. In the present case, we show a multidisciplinary approach where orthodontics, periodontics, and restorative dentistry were involved in treating the maxillary right central incisor (#8) of a 65-year-old patient with extensive cervical resorption, whose chief complaint was esthetics. The proposed treatment was extrusion of the tooth followed by curettage and restoration of the defect with glass ionomer cement. The patient has been followed for 15 years with no signs of recurrence, maintenance of periodontal health, and patient satisfaction with the esthetic outcome.

scholarly journals Elastomeric Impression Materials: A Comparison of Accuracy of Multiple Pours

2011 ◽  
Vol 12 (4) ◽  
pp. 272-278 ◽  
Author(s):  
Dheeraj Kumar ◽  
Anand U Madihalli ◽  
K Rajeev Kumar Reddy ◽  
Namrataa Rastogi ◽  
NT Pradeep
Keyword(s):  
Clinical Significance ◽  
Dimensional Stability ◽  
Central Hole ◽  
Central Incisor ◽  
Impression Material ◽  
Maxillary Central Incisor ◽  
Dimensional Changes ◽  
The Third ◽  
Impression Materials ◽  
Time Periods

ABSTRACT Aim The aim of the present study is to compare the various elastomeric impression materials in terms of accuracy and dimensional stability, with respect to obtaining multiple casts from a single elastomeric impression at various times of pours. Materials and methods Three master dies were prepared for the impression making, two of these were made of brass containing a central hole with undercuts. The third die simulated a conventionally prepared typodont maxillary central incisor. Three elastomeric impression materials were chosen for the study. Each impression was poured at various time periods. Casts thus obtained were evaluated under a traveling microscope to evaluate various dimensional changes. Results Addition silicones provided dies which were shorter in height and bigger in diameter. Polyethers provided dies which were shorter in both height and diameter. Condensation silicones showed insignificant changes from the master die at the immediate pour but deteriorated rapidly after that in subsequent pours. Conclusion None of the impression material showed a consistent behavior up to the fourth pour. They occasionally showed deviation from the pattern, but all these values were statistically insignificant. Polyethers showed lesser ability than both the addition silicones as well as the condensation silicones to recover from induced deformation. Clinical significance Addition silicones as well as the condensation silicones have better ability to recover from induced deformation when compared to polyether. How to cite this article Kumar D, Madihalli AU, Reddy KRK, Rastogi N, Pradeep NT. Elastomeric Impression Materials: A Comparison of Accuracy of Multiple Pours. J Contemp Dent Pract 2011;12(4):272-278.

scholarly journals Maxillary Incisive Canal Characteristics: A Radiographic Study Using Cone Beam Computerized Tomography

2019 ◽  
Vol 2019 ◽  
pp. 1-5 ◽  
Author(s):  
Penala Soumya ◽  
Pradeep Koppolu ◽  
Krishnajaneya Reddy Pathakota ◽  
Vani Chappidi
Keyword(s):  
Central Incisor ◽  
Anatomic Structure ◽  
Incisive Canal ◽  
Maxillary Central Incisor ◽  
Implant Placement ◽  
Mean Width ◽  
Immediate Implant ◽  
Thin Bone ◽  
Incisive Foramen ◽  
The Mean

Background. The incisive canal located at the midline, posterior to the central incisor, is an important anatomic structure of this area to be considered while planning for immediate implant placement in maxillary central incisor region. The purpose of the present study is to assess incisive canal characteristics using CBCT sections. Materials and Methods. CBCT scans of 79 systemically healthy patients, with intact maxillary incisors, were evaluated by two calibrated and independent examiners. Assessments included (1) mesiodistal diameter, (2) labiopalatal diameter, (3) length of the incisive canal, (4) shape of incisive canal, and (5) width of the bone anterior to the incisive foramen. Results. The mean width of the foramen labiopalatally and mesiodistally was 3.12 ± 0.94 mm and 3.23 ± 0.98 mm, respectively. Mean canal length was 18.63 ± 2.35 mm and males have significantly longer incisive canal than females. The mean width of bone anterior to the incisive canal was 6.32 ± 1.43 mm. As age of the subjects increased, incisive foramen diameter and incisive canal length were found to be increased. Cylindrical shaped incisive canals were seen in most of the individuals followed by funnel shaped and hour-glass shaped canals, and banana-like canal is least prevalent type. Conclusion. The findings from the present study suggest that the diameter and length of incisive canal vary among different individuals and presence of very thin bone anterior to the canal would suggest that a pretreatment CBCT scan is a valuable tool to evaluate anatomic variations, morphology, and dimensions of incisive foramen before immediate implant placement in maxillary central incisor region.

scholarly journals Anatomic crown length and mesio-distal width of maxillary central incisor teeth in Bangladeshi population

2013 ◽  
Vol 2 (1) ◽  
pp. 08-13
Author(s):  
Md Mahfuz Hossain ◽  
Mushfiq Hassan Shaikh ◽  
Md Mahfuzur Raihan ◽  
Md Asif Iqbal Khan
Keyword(s):  
Central Incisor ◽  
Crown Height ◽  
Maxillary Central Incisor ◽  
Anatomy And Physiology ◽  
Crown Length ◽  
Anterior Teeth ◽  
Dental Aesthetics ◽  
The Mean ◽  
Bangladeshi Population ◽  
Oral Anatomy

Background : Dimensions of teeth have been an excellent tool for determining clinically relevant aspects of dental aesthetics. Especially, the anterior teeth crown height and their mesio-distal widths are very important, because of their strategic anatomical position of being in the centre and in the front of the upper jaw. Objectives : The presented study was aimed to find the nominative data of the average anatomic crown height and mesio-distal width of maxillary central incisors of Bangladeshi population irrespective of age and sex. Methods : This observational study was carried out at Update dental college & Hospital. 110 typical extracted human maxillary central incisor teeth were collected randomly from the Oral Anatomy and Physiology Department of Update dental college and Sapporo dental college. Results : In this study it shows that maxillary central incisors’ average crown length is between  7.25 – 11.75 mm and the mean crown length is 10.37(SD±0.90) mm. The average mesio-distal width is between 9.00 – 13.00 mm and the mean mesio-distal width  is 8.51 (SD±0.62) mm. Conclusions : Apart from other specific and objective parameters related to dental aesthetics, these values of mesio-distal width and the length of the maxillary central incisors mentioned in this study will serve as guidelines for the diagnosis and treatment planning, especially in restorative dentistry, orthodontics and periodontal surgeries.DOI: http://dx.doi.org/10.3329/updcj.v2i1.13954 Update Dent. Coll. j: 2012; 2 (1): 08-13

Nasopalatine Canal Position Relative to the Maxillary Central Incisors: A Cone Beam Computed Tomography Assessment

2012 ◽  
Vol 38 (6) ◽  
pp. 713-717 ◽  
Author(s):  
Pakawat Chatriyanuyoke ◽  
Chun-I Lu ◽  
Yusuke Suzuki ◽  
Jaime L. Lozada ◽  
Kitichai Rungcharassaeng ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Age Group ◽  
Central Incisor ◽  
Significance Level ◽  
Maxillary Central Incisor ◽  
Nasopalatine Canal ◽  
The Mean ◽  
Old Men

The aim of this study was to determine the proximity of the nasopalatine canal (NPC) to the maxillary central incisor root (MCIR). The study included 120 cone beam computed tomography scans obtained from the Center for Implant Dentistry, Loma Linda University, between June 2006 and September 2009. They were equally distributed into six groups: (1) 21- to 40-year-old men, (2) 21- to 40-year-old women, (3) 41- to 60-year-old men, (4) 41- to 60-year-old women, (5) 61- to 80-year-old men, and (6) 61- to 80-year-old women. The closest distances between the NPC and the MCIR (NPC-to-MCIR) were measured at the midroot (bisecting palatal cementoenamel junction to root apex) and the apex levels. Differences between the groups were analyzed using a t test and 1-way analysis of variance at a significance level of α = .05. The overall mean NPC-to-MCIR distances at the midroot and apex levels were 3.05 ± 1.64 and 5.22 ± 1.56 mm, respectively. The modes of the NPC-to-MCIR distances at the midroot and apex levels were in the range of 1.01–2.00 mm and 4.01–5.00 mm, respectively. The mean NPC-to-MCIR distance was significantly greater in men than in women at the midroot level (P < .05) but not at the apex level (P > .05). The mean NPC-to-MCIR distance was significantly shorter for the youngest age group than the other two age groups at the midroot level (P < .05). However, at the apex level, the youngest age group had a significantly shorter distance compared with the oldest age group (P < .05) but not the middle age group (P > .05). The results of this study suggest that, to avoid NPC penetration, more care must be exercised during immediate implant placement at the midroot level of a maxillary central incisor in women and younger patients because of the root proximity to the NPC. Tapered implants may also be beneficial in such situations.

scholarly journals Noncomplicated Surgical Removal of Fractured Maxillary Central Incisor from Lower Lip and Its Reattachment: A Case Report

2021 ◽  
Author(s):  
Megha Narayan ◽  
Rajat Kumar Singh ◽  
Aparna Singh ◽  
Siddharth Anand ◽  
Sulekha Sulekha
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Surgical Excision ◽  
Surgical Removal ◽  
Central Incisor ◽  
Lower Lip ◽  
Present Case Report ◽  
Traumatic Injuries ◽  
Maxillary Central Incisor ◽  
Anterior Teeth

AbstractTraumatic injuries to maxillary anterior teeth while playing are common in children and adolescents. Sequelae of such trauma include broken, lost, aspirated, and swallowed tooth. At times, the broken tooth fragments get embedded in the adjoining soft tissue and frequently get neglected during diagnosis. The present case report discusses the case of a 13-year-old adolescent who had broken tooth fragment emerged in the lower lip and its surgical excision to prevent detrimental reactions and scarring.

scholarly journals Penatalaksanaan Frenektomi dan Depigmentasi Gingiva pada Regio Anterior Rahang Atas Anak Perempuan Usia 11 Tahun

2016 ◽  
Vol 1 (1) ◽  
pp. 5
Author(s):  
Richard Akin ◽  
Al Sri Koes Soesilowati
Keyword(s):  
Gingival Recession ◽  
Medical Problem ◽  
Cleaning Process ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
Periodontal Tissues ◽  
Gingival Health ◽  
Central Case ◽  
The One ◽  
Gingival Depigmentation

Frenulum labialis yang abnormal dapat berpengaruh terhadap kesehatan gingiva dan menimbulkan penyakit periodontal dengan cara menarik margin gingiva sehingga menimbulkan resesi gingiva. Abnormalitas dari frenulum ini juga menyebabkan diastema dari gigi insisivus sentral, iritasi pada jaringan periodontal, menghalangi proses pembersihan gigi, menghalangi pergerakan alat ortodonsi, mengganggu pemakaian protesa gigi serta berpengaruh pada estetik. Selain frenulum yang abnormal, masalah pada gingiva yang dapat berpengaruh juga pada estetik adalah pigmentasi gingiva. Pigmentasi pada gingiva merupakan hasil dari granul melanin yang diproduksi oleh melanoblas. Hiperpigmentasi melanin pada gingiva biasanya bukan masalah medis tetapi keluhan pasien yang menginginkan terapi perbaikan estetik. Untuk melaporkan penatalaksanaan frenektomi labialis superior dan depigmentasi pada kasus sentral diastema dan pigmentasi gingiva. Anak perempuan 11 tahun diastema sentral insisivus maksila disertai dengan hiperpigmentasi gingiva regio anterior maksila. Diastema sentral insisivus maksilanya disebabkan oleh perlekatan frenulum labialis superior yang tinggi. Perawatan untuk perlekatan frenulum labialis superior yang tinggi dilakukan frenektomi dan perawatan depigmentasi dilakukan dengan teknik scraping menggunakan skalpel. Perawatan frenektomi dan depigmentasi menunjukkan hasil perbaikan perlekatan frenulum dan  menghilangkan hiperpigmentasi gingiva. ABSTRACT: Management of Frenectomy and Gingival Depigmentation at Regio Anterior Upper Arch of 11 Year Old Girl. Abnormal labial frenulum may affect gingival health and cause periodontal disease by pulling the gingival margin causing gingival recession. Abnormalities of the frenulum also cause diastema of central incisors and irritation of the periodontal tissues, bother the teeth cleaning process, interfere the movement of orthodontic tools, interfere with the proper fit of the denture and affect the aesthetics. In addition to abnormal frenulum, a problem that can affect the gingival esthetics is also gingival pigmentation. Gingival pigmentation is a result of melanin granules produced by melanoblast. Melanin hyperpigmentation of the gingiva is not a medical problem but it becomes a complaint from patients who desire aesthetic improvement therapies. To report frenectomy labialis superior management and depigmentation in the central case of diastema and gingival pigmentation. An 11 year old girl had diastema in maxillary central incisor accompanied by gingival pigmentation in maxillary anterior region. Diastema in maxillary central incisor is caused by a high attachment of the superior labial frenulum. The (one of the) Treatment for a high attachment of the superior labial frenulum is frenectomy and the depigmentation treatment is done by scraping technique using a scalpel. Frenectomy and depigmentation treatment show improved results of the frenulum attachment and remove gingival pigmentation.

scholarly journals Comparison of color difference and reliability of two intraoral spectrophotometers

2021 ◽  
Vol 20 ◽  
pp. e211076
Author(s):  
Sanaa N. Al-Haj Ali ◽  
Ra'fat I, Farah ◽  
Abdullah Aldhefeeri ◽  
Ibrahim Alduraibi
Keyword(s):  
Intraclass Correlation ◽  
Color Difference ◽  
Central Incisor ◽  
Color Coordinates ◽  
Maxillary Central Incisor ◽  
Device Reliability ◽  
Significant Difference ◽  
Insignificant Difference ◽  
The Mean ◽  
Labial Surface

Aim: to evaluate the intra and inter-device reliability of two intraoral spectrophotometers in measuring the Commission Internationale de l’Éclairage (CIE) L*a*b* color coordinates and to compare the color difference (ΔE) between both devices. Methods: the central region of the labial surface of the maxillary central incisor of 31 participants was measured twice by each of the devices (VITA EasyShade and Degudent Shadepilot) by one examiner. CIE L*a*b* color coordinates were obtained for all teeth and ΔE was measured and compared. Intraclass correlation coefficient (ICC) and Mann-whitney U test were used to analyze the data (p<0.05). Results: inter-device reliability ICCs in measuring CIE L*a*b* color coordinates ranged between 0.08-0.49 with significant difference between devices only concerning the b coordinate (p<0.05). While intra device reliability ICCs ranged between 0.86-0.89 for VITA EasyShade and 0.81-0.86 for Degudent Shadepilot. The mean ΔE for CIE L*a*b* color coordinates of VITA EasyShade was 3.61 (±1.93) compared to 3.60 (± 1.45) for Degudent Shadepilot with insignificant difference between both devices (p>0.05). Conclusions: high intra device reliability in measuring CIE L*a*b* color coordinates was achieved particularly of Vita EasyShade, and both devices had clinically acceptable color difference (ΔE <3.7) however, inter device reliability was low to moderate. Consequently, the same spectrophotometer should be used throughout the steps of performing any tooth- colored restoration.

scholarly journals Fragment Reattachment after Atypical Crown Fracture in Maxillary Central Incisor

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Vanessa Torraca Peraro Vaz ◽  
Cristina Dupim Presoto ◽  
Keren Cristina Fagundes Jordão ◽  
André Gustavo Paleari ◽  
Andrea Abi-Rached Dantas ◽  
...  
Keyword(s):  
Young Patient ◽  
Clinical Significance ◽  
Dental Trauma ◽  
Case Description ◽  
Central Incisor ◽  
Dental Injury ◽  
Maxillary Central Incisor ◽  
Restorative Treatment ◽  
Trauma Case ◽  
And Function

Background. Fracture by trauma is one of the most common types of dental injury in the permanent dentition among children and teenagers.Aim. The aim of this study was to report the treatment performed to an atypical dental trauma case in a maxillary central incisor of a young patient by means of reattachment of the tooth fragment.Case Description. A 12-year-old male patient suffered a vertical crown fracture to the maxillary right central incisor. After clinical and radiographic examinations, a conservative restorative treatment which consisted in the reattachment of the tooth fragment with flow resin was performed in order to preserve the dental element and to obtain maximum aesthetics.Conclusion. The reattachment of fractured fragment is a fast and easy technique that can be used successfully as an option to restore dental element which suffered trauma.Clinical Significance. This technique restores the aesthetics and function of the dental element with minimal discomfort to the patient.

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