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Split obturator: An innovative approach

Identifieur interne : 001C38 ( Pmc/Corpus ); précédent : 001C37; suivant : 001C39

Split obturator: An innovative approach

Auteurs : Sunit K. Jurel ; Raghuwar D. Singh ; Durga Shanker Gupta

Source :

RBID : PMC:3214540

Abstract

A palatal prosthesis can improve function by closing the palatal defect, preventing regurgitation, and improving swallowing and speech. Although techniques have been previously described for fabrication of palatal obturator, but there has not been any technique to devise an obturator for a patient with palatal defect with a quadhelix orthodontic appliance overlying it. One cannot wait in such patients for completion of lengthy orthodontic treatment and then think of devising prosthesis as the patient cannot carry out normal functions like swallowing and speech without the closure of defect. This article focuses on an innovative method of fabricating a palatal obturator which aims at restoring the above-mentioned functions along with improving aesthetics. It also enables us to devise the fabrication of prosthesis in two parts for easy insertion and removal and as well as to be self-cleansable. Such prosthesis would markedly improve patient psychology and confidence.


Url:
DOI: 10.4103/0976-237X.86486
PubMed: 22090776
PubMed Central: 3214540

Links to Exploration step

PMC:3214540

Le document en format XML

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<italic>Department of Oral and Maxillofacial Surgery, Teerthanker Mahaveer Dental College, Moradabad, Uttar Pradesh, India</italic>
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<title level="j">Contemporary Clinical Dentistry</title>
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<div type="abstract" xml:lang="en">
<p>A palatal prosthesis can improve function by closing the palatal defect, preventing regurgitation, and improving swallowing and speech. Although techniques have been previously described for fabrication of palatal obturator, but there has not been any technique to devise an obturator for a patient with palatal defect with a quadhelix orthodontic appliance overlying it. One cannot wait in such patients for completion of lengthy orthodontic treatment and then think of devising prosthesis as the patient cannot carry out normal functions like swallowing and speech without the closure of defect. This article focuses on an innovative method of fabricating a palatal obturator which aims at restoring the above-mentioned functions along with improving aesthetics. It also enables us to devise the fabrication of prosthesis in two parts for easy insertion and removal and as well as to be self-cleansable. Such prosthesis would markedly improve patient psychology and confidence.</p>
</div>
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<author>
<name sortKey="Desjardins, Rp" uniqKey="Desjardins R">RP Desjardins</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Beumer, J" uniqKey="Beumer J">J Beumer</name>
</author>
<author>
<name sortKey="Curtis, Ta" uniqKey="Curtis T">TA Curtis</name>
</author>
<author>
<name sortKey="Marunick, Mt" uniqKey="Marunick M">MT Marunick</name>
</author>
</analytic>
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<analytic>
<author>
<name sortKey="Chalian, Va" uniqKey="Chalian V">VA Chalian</name>
</author>
<author>
<name sortKey="Drane, Jb" uniqKey="Drane J">JB Drane</name>
</author>
<author>
<name sortKey="Standish, Sm" uniqKey="Standish S">SM Standish</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Rogers, Sn" uniqKey="Rogers S">SN Rogers</name>
</author>
<author>
<name sortKey="Lowe, D" uniqKey="Lowe D">D Lowe</name>
</author>
<author>
<name sortKey="Brown, Js" uniqKey="Brown J">JS Brown</name>
</author>
<author>
<name sortKey="Vaughan, Ed" uniqKey="Vaughan E">ED Vaughan</name>
</author>
</analytic>
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<biblStruct>
<analytic>
<author>
<name sortKey="Genden, Em" uniqKey="Genden E">EM Genden</name>
</author>
<author>
<name sortKey="Okay, D" uniqKey="Okay D">D Okay</name>
</author>
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<name sortKey="Stepp, Mt" uniqKey="Stepp M">MT Stepp</name>
</author>
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<name sortKey="Rezaee, Rp" uniqKey="Rezaee R">RP Rezaee</name>
</author>
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<name sortKey="Mojica, Js" uniqKey="Mojica J">JS Mojica</name>
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<name sortKey="Buchbinder, D" uniqKey="Buchbinder D">D Buchbinder</name>
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</biblStruct>
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<analytic>
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<name sortKey="Cordeiro, Pg" uniqKey="Cordeiro P">PG Cordeiro</name>
</author>
<author>
<name sortKey="Santamaria, E" uniqKey="Santamaria E">E Santamaria</name>
</author>
</analytic>
</biblStruct>
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<pmc-dir>properties open_access</pmc-dir>
<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Contemp Clin Dent</journal-id>
<journal-id journal-id-type="publisher-id">CCD</journal-id>
<journal-title-group>
<journal-title>Contemporary Clinical Dentistry</journal-title>
</journal-title-group>
<issn pub-type="ppub">0976-237X</issn>
<issn pub-type="epub">0976-2361</issn>
<publisher>
<publisher-name>Medknow Publications Pvt Ltd</publisher-name>
<publisher-loc>India</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="pmid">22090776</article-id>
<article-id pub-id-type="pmc">3214540</article-id>
<article-id pub-id-type="publisher-id">CCD-2-253</article-id>
<article-id pub-id-type="doi">10.4103/0976-237X.86486</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Case Report</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Split obturator: An innovative approach</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Jurel</surname>
<given-names>Sunit K.</given-names>
</name>
<xref ref-type="aff" rid="aff1"></xref>
<xref ref-type="corresp" rid="cor1"></xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Singh</surname>
<given-names>Raghuwar D.</given-names>
</name>
<xref ref-type="aff" rid="aff1"></xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Gupta</surname>
<given-names>Durga Shanker</given-names>
</name>
<xref ref-type="aff" rid="aff2">1</xref>
</contrib>
</contrib-group>
<aff id="aff1">
<italic>Department of Prosthodontics, Faculty of Dental Sciences, C.S.M. Medical University (upgraded K.G.M.C.), Lucknow, India</italic>
</aff>
<aff id="aff2">
<label>1</label>
<italic>Department of Oral and Maxillofacial Surgery, Teerthanker Mahaveer Dental College, Moradabad, Uttar Pradesh, India</italic>
</aff>
<author-notes>
<corresp id="cor1">
<bold>Correspondence:</bold>
Dr. Sunit Kumar Jurel, Department of Prosthodontics, Faculty of Dental Sciences, C.S.M. Medical University, Lucknow – 226 003, India. E-mail:
<email xlink:href="dentistmj1110@yahoo.co.in">dentistmj1110@yahoo.co.in</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub">
<season>Jul-Sep</season>
<year>2011</year>
</pub-date>
<volume>2</volume>
<issue>3</issue>
<fpage>253</fpage>
<lpage>255</lpage>
<permissions>
<copyright-statement>Copyright: © Contemporary Clinical Dentistry</copyright-statement>
<copyright-year>2011</copyright-year>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc-sa/3.0">
<license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<abstract>
<p>A palatal prosthesis can improve function by closing the palatal defect, preventing regurgitation, and improving swallowing and speech. Although techniques have been previously described for fabrication of palatal obturator, but there has not been any technique to devise an obturator for a patient with palatal defect with a quadhelix orthodontic appliance overlying it. One cannot wait in such patients for completion of lengthy orthodontic treatment and then think of devising prosthesis as the patient cannot carry out normal functions like swallowing and speech without the closure of defect. This article focuses on an innovative method of fabricating a palatal obturator which aims at restoring the above-mentioned functions along with improving aesthetics. It also enables us to devise the fabrication of prosthesis in two parts for easy insertion and removal and as well as to be self-cleansable. Such prosthesis would markedly improve patient psychology and confidence.</p>
</abstract>
<kwd-group>
<kwd>Palatal obturator</kwd>
<kwd>quad helix</kwd>
<kwd>regurgitation</kwd>
<kwd>soft liner</kwd>
<kwd>swallowing</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<sec id="sec1-1">
<title>Introduction</title>
<p>The glossary of prosthodontic term defines an obturator as a prosthesis used to close a congenital or acquired opening in the palate.[
<xref ref-type="bibr" rid="ref1">1</xref>
] It is of utmost importance that it must separate the oral cavity from nasal and sinus cavities and make oral cavity ready for appropriate function. Also the prosthesis must add retention and stability by extending far into the defect to seal it. In past, various methods and techniques have been described for fabrication of removable obturator prosthesis. But one has to keep in mind that such methods cannot always be employed in each and every case. The location and size of maxillary defect and the individuality of the case determine the difficulty of prosthetic rehabilitation.[
<xref ref-type="bibr" rid="ref2">2</xref>
] One has to be more innovative and think of new ideas because specially made obturator prosthesis is necessary to restore function in such cases. Main disadvantage with previous reports is that there are no methods to fabricate obturator in patients with palatal defect undergoing maxillary arch expansion with a quadhelix. Such a patient goes through much more difficulties than a patient with a defect but without quad helix overlying it. In such cases, we cannot wait for long duration of orthodontic treatment to get over and then think of prosthesis. In such a patient, it is a challenge for the dentist to fabricate an obturator that would restore patients function and esthetics. An innovative method was used in doing so.</p>
</sec>
<sec id="sec1-2">
<title>Case Report</title>
<p>A 25-year-old man reported to the out-patient Prosthodontics Department of Faculty of Dental Sciences K.G.M.U, Lucknow (U.P.) with the chief complaints of difficulty in regurgitation and speech. On clinical examination, it was revealed that the patient had maxillary class III defect according to Armany classification[
<xref ref-type="bibr" rid="ref3">3</xref>
] and had both maxillary central and lateral incisors missing [
<xref ref-type="fig" rid="F1">Figure 1a</xref>
]. He was undergoing treatment for arch expansion with a quadhelix appliance [
<xref ref-type="fig" rid="F1">Figure 1b</xref>
]. The definitive treatment was to fabricate a cast partial obturator to close the defect after the completion of orthodontic treatment. But in such cases, one cannot wait till the completion of orthodontic treatment as the patient was suffering from problems in regurgitation and speech, the biggest challenge in this case was to devise a prosthesis that</p>
<p>
<list list-type="simple">
<list-item>
<label>1)</label>
<p>would close the palatal defect even with the quad helix in place.</p>
</list-item>
<list-item>
<label>2)</label>
<p>would not hamper the orthodontic treatment.</p>
</list-item>
<list-item>
<label>3)</label>
<p>Could be easily cleansable by the patient to maintain proper oral hygiene.</p>
</list-item>
<list-item>
<label>4)</label>
<p>would improve the patient's aesthetics by replacing the missing teeth.</p>
</list-item>
</list>
</p>
<fig id="F1" position="float">
<label>Figure 1</label>
<caption>
<p>Intraoral view of the defect. (a) Without a quadhelix. (b) With a quadhelix</p>
</caption>
<graphic xlink:href="CCD-2-253-g001"></graphic>
</fig>
<p>It was decided that to fulfil all the above needs, the prosthesis would have to be fabricated in an innovative way which would help the patient in improving his regurgitation, speech, maintain oral hygiene, aesthetics and will not hamper the orthodontic treatment. So prosthesis was fabricated in two parts: the anterior part and posterior part. For ease of understanding, the anterior part was designated as part A and the posterior part was designated as part P. The part A consisted of a removable partial denture replacing missing teeth and a ball end was joined to its posterior surface.The part P covered the defect and was bordered by permanent soft liner. The anterior surface of part P had a socket into which the ball end previously mentioned would fit. The surface of part P that was facing toward the quadhelix had a fingernail mark of the patient embedded into it.</p>
<sec id="sec2-1">
<title>Fabrication</title>
<p>The quadhelix was removed and two impressions were recorded: one with the quadhelix and another without it. Purpose of first impression was to get an exact idea of the level at which the quad helix wire lied in the patients mouth .This was clearly accessed by the model poured from this impression. It was important to know the level at which quadhelix lied because the prosthesis had to lie passively in contact with the quadhelix underneath it, while covering the defect. It should not exert any undue pressure on the helix. Purpose of the second impression was to get the impression of the defect. Both the impressions were poured in die stone.</p>
<p>After proper evaluation of both the cast, the level of quadhelix was carefully marked on the second cast that is without the helix. On this second cast, the procedure for fabrication of part A, i.e. the anterior part of the prosthesis was started. Artificial teeth were set to replace the missing teeth and wax up was done that extended labially up to the labial sulcus and palatally up to 5--6 mm from crest of the ridge and this extension was marked on the cast. On the posterior aspect of this part, a metallic ball attachment was placed protruding out from wax [
<xref ref-type="fig" rid="F2">Figure 2</xref>
].</p>
<fig id="F2" position="float">
<label>Figure 2</label>
<caption>
<p>Cast showing wax up of part A (removable partial denture replacing missing teeth with metallic ball attachment)</p>
</caption>
<graphic xlink:href="CCD-2-253-g002"></graphic>
</fig>
</sec>
<sec id="sec2-2">
<title>Fabrication of part P</title>
<p>After this step, fabrication of the posterior part was started. All undercuts in defect were removed with Plaster of Paris and the defect was filled with plaster till the level of 2--3 mm above the level of palatal vault. Then wax up was done to cover the defect till the level of quadhelix initially marked on the cast. Anteriorly, this wax extended till it comes in contact with the anterior part and a socket was placed at the point where the ball protruding from anterior part fits into the posterior part. Also into the wax facing the quad helix, an impression of the finger nail of patient was marked. Both the parts were processed in heat cure acrylic. The anterior part was inserted and brackets were applied on the acrylic teeth and wire was passed through them to give a natural appearance of teeth undergoing orthodontic treatment. Also it provided anterior stabilization for part A [
<xref ref-type="fig" rid="F3">Figure 3</xref>
]. Posteriorly, the ball protruding was inserted into the socket of posterior part, i.e. part P.</p>
<fig id="F3" position="float">
<label>Figure 3</label>
<caption>
<p>Intraorally showing brackets being attached on fabricated anterior part (part A)</p>
</caption>
<graphic xlink:href="CCD-2-253-g003"></graphic>
</fig>
</sec>
<sec id="sec2-3">
<title>Insertion of part P</title>
<p>The patients head was tilted downward at an angle of 45 degrees to the floor. Part P was lined with permanent heat cure soft liner. Part P was placed on hard palate behind the quadhelix and slided anteriorly over the defect till it lies in between the defect and the quadhelix. Anteriorly it fitted into the ball attachment on already fixed part A.</p>
<p>The two-part prosthesis is inserted into the patients as seen intraorally [
<xref ref-type="fig" rid="F4">Figure 4</xref>
]. The patient was instructed to maintain oral hygiene by removing the part P. This can be done by again tilting head at 45 degrees and patient inserts fingernail into the impression made on part P before fabrication and removes it from over the defect by sliding it posteriorly.</p>
<fig id="F4" position="float">
<label>Figure 4</label>
<caption>
<p>Intraorally showing finished and polished final prosthesis</p>
</caption>
<graphic xlink:href="CCD-2-253-g004"></graphic>
</fig>
</sec>
<sec id="sec2-4">
<title>Patient follow up</title>
<p>The patient was asked to return on days 1, 2 and 7 for follow-ups after the prosthetic insertion. Thereafter a 6 month follow-up was done for prosthesis evaluation and adjustment. The patient was able to maintain oral hygiene and all his chief complaints were resolved.</p>
</sec>
</sec>
<sec id="sec1-3">
<title>Discussion</title>
<p>Rehabilitation of palatal defect in patient undergoing orthodontic treatment using a quadhelix is a complex task, a split palatal obturator is a good prosthetic option for rehabilitation in such cases[
<xref ref-type="bibr" rid="ref4">4</xref>
<xref ref-type="bibr" rid="ref5">5</xref>
] as it is not worth to wait for prosthetic rehabilitation for such a long time.</p>
<sec id="sec2-5">
<title>Advantages of a custom split palatal obturator</title>
<p>
<list list-type="order">
<list-item>
<p>Improved mastication and swallowing.</p>
</list-item>
<list-item>
<p>Improved articulation and intelligibility of speech.</p>
</list-item>
<list-item>
<p>Rehabilitation with an obturator prosthesis is functional, reliable/safe, easy to build, and has a low level of invasiveness.</p>
</list-item>
</list>
</p>
</sec>
</sec>
<sec id="sec1-4">
<title>Conclusions</title>
<p>The use of a palatal obturator helps immensely in covering the defect and hence restores functions such as speech, deglutition, prevent regurgitation and in such particular cases restores esthetics and be self-cleansable.[
<xref ref-type="bibr" rid="ref6">6</xref>
<xref ref-type="bibr" rid="ref8">8</xref>
] Such patients go through many difficulties than patient not going orthodontic treatment. So there rehabilitation is also necessary that too along with the orthodontic treatment in progress. Such a kind of innovative method in restoring the defect aids the person in integrating himself with his family, colleagues and social environment.</p>
</sec>
</body>
<back>
<fn-group>
<fn fn-type="supported-by">
<p>
<bold>Source of Support:</bold>
Nil.</p>
</fn>
<fn fn-type="conflict">
<p>
<bold>Conflict of Interest:</bold>
None declared.</p>
</fn>
</fn-group>
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