healthy

ABSTRACT
M
RESUMO
A
www.fob.usp.br/revista or www.scielo.br/jaos
FUNCTIONAL EVALUATION OF ORAL REHABILITATION WITH
REMOVABLE PARTIAL DENTURES AFTER FIVE YEARS
AVALIAÇÃO FUNCIONAL DA REABILITAÇÃO ORAL COM PRÓTESE PARCIAL
REMOVÍVEL APÓS CINCO ANOS
Dúcia Caldas COSME
1
, Simone Michielon BALDISSEROTTO
1
, Eduardo de Lima FERNANDES
2
, Elken Gomes RIVALDO
,
Cassiano Kuchenbecker ROSING
4
, Rosemary Sadami Arai SHINKAI
5
1- DDS, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.
2- DDS, MSc, Associate Professor, Department of Prosthodontics, Lutheran University of Brazil (ULBRA/RS), Canoas, Brazil.
3- DDS, MSc, PhD, Associate Professor, Department of Prosthodontics, Lutheran University of Brazil (ULBRA/RS), Canoas, Brazil.
4- DDS, MSc, PhD, Associate Professor, Department of Restorative Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.
5- DDS, MSc, PhD, Associate Professor, Department of Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.
Corresponding address: Dúcia Caldas Cosme - Av. José Aluísio Filho 889, casa 97 - Humaitá - Porto Alegre/RS  - Cep.: 90250-180
Fone: 51- 33747326 - e-mail: duciacaldas@terra.com.br
Received: May 17, 2005 - Modification: August 30, 2005 - Accepted: December 13, 2005
J Appl Oral Sci. 2006;14(2):111-6
    ost removable partial denture (RPD) wearers are satisfied with their prostheses, but the factors that influence satisfaction and acceptance
are still not determined. Objective: This study explored technical, biological, and satisfaction variables for the functioning of RPDs after five
years, and compared the evaluation by the patient and by the clinician. Materials and Methods: Fifty adults (39 females, 11 males) were reexamined
after five years of RPD service. Data were collected through clinical examination and a structured questionnaire to record
the conditions
of
supporting soft tissues, prosthesis acceptance and technical characteristics, mastication, esthetics, comfort, hygiene, and need
for professional
intervention.
Data were analyzed by descriptive statistics and Spearman correlation. Results: More than 50% of patients classified
their RPDs as
excellent
regarding retention, mastication, esthetics, comfort, and hygiene. In the professional evaluation, retention and stability
were considered
excellent
in more than 66% of cases, and hygiene of teeth and prostheses was considered good in 52% and 46%, respectively.
The metallic
framework
and acrylic base were considered adapted in 92% of cases. Prosthesis acceptance was associated with retention, mastication,
esthetics,
hygiene,
and comfort evaluated by the patient, and with retention, stability,
and condition of the framework evaluated by the clinician.
Retention
and
mastication/comfort evaluated by the patient had moderate positive correlation with retention and stability measured by the
clinician. There
was
no association of hygiene evaluation by the patient and by the clinician. Conclusions: After
five years, the oral rehabilitation
with RPDs was
satisfactory
for most cases. There was correspondence between retention/retention and mastication-comfort/stability variables evaluated
by the
patient
and by the clinician. Oral and prosthesis hygiene were not related.
Uniterms:
Removable partial denture; Dental prosthesis retention; Hygiene.
    maioria dos usuários de PPR mostra-se satisfeita com suas próteses, porém os fatores que influenciam a satisfação e aceitação não estão
determinados. Objetivo: Este estudo explorou variáveis técnicas, biológicas e de satisfação no funcionamento de próteses parciais removíveis
(PPRs) após cinco anos de uso, comparando a avaliação do paciente e do cirurgião-dentista. Materiais e Métodos: Cinqüenta adultos (39 mulheres,
11 homens) foram reexaminados após cinco anos da instalação de PPR. Através de exame clínico e questionário estruturado, foram coletados os
dados relativos às condições dos tecidos de suporte, aceitação e características técnicas da PPR, mastigação, estética, conforto, higiene e
necessidade de intervenção profissional. Os dados foram analisados por estatística descritiva e por correlação de Spearman. Resultados: Mais de
50% dos pacientes classificaram suas próteses como excelente quanto à retenção, mastigação, estética, conforto e higiene.  Na avaliação do
profissional, retenção e estabilidade foram consideradas excelentes em mais de 66% dos pacientes, e a higiene dos dentes e da prótese foi
considerada boa em 52% e 46% dos casos, respectivamente. As armações metálicas e bases acrílicas foram consideradas adaptadas em 92% dos
casos. Aceitação da prótese foi associada com retenção, mastigação, estética, higiene e conforto avaliados pelo paciente, e com retenção,
estabilidade e condição da armação metálica avaliadas pelo profissional. Retenção e mastigação/conforto, avaliados pelo paciente, mostraram
correlação positiva moderada com retenção e estabilidade medidas pelo profissional. Não houve associação entre avaliação de higiene pelo
paciente e pelo profissional. Conclusões: Após cinco anos, a reabilitação oral com PPR estava satisfatória na maioria dos casos. Houve correspondência
entre as variáveis retenção/retenção e mastigação-conforto/estabilidade. Higiene oral e da prótese não mostraram associação.
Unitermos: Prótese parcial removível; Retenção em prótese dentária; Higiene.
3
111
112
FUNCTIONAL EVALUATION OF ORAL REHABILITATION WITH REMOVABLE PARTIAL DENTURES AFTER FIVE YEARS
INTRODUCTION
Oral rehabilitation with fixed or removable partial dentures
(RPDs) plays an important role in restoring oral and systemic
health of edentulous patients. Compared to fixed partial
dentures, the advantages of RPDs include lower cost and
easier oral hygiene procedures
. Biological, mechanical,
esthetic, and psychological factors are related to acceptance
of prosthesis and, consequently, to the success of treatment.
However, many controversies still exist about the
determinants of RPD prognosis.
4
Satisfaction with RPDs has multifactorial dimensions
involving technical and patient-related variables
.
Success is judged differently by the patient and by the
professional: the first judges personal satisfaction; the
second judges biological and technical aspects
. Comfort,
masticatory ability, esthetics, and retention seem to be the
most important factors for prosthesis acceptance
26
.
Personality, attitude towards RPD, previous experience, and
motivation are dependent on the patient and may influence
general satisfaction
.
Regular professional evaluation of technical aspects are
12,28
important for the maintenance of RPDs. Approximately sixty
percent of RPDs wearers have technical problems such as
loss of integrity, excessive tooth wear, and loss of retention
and stability
. Plaque accumulation and changes in the
remaining teeth, such as caries, periodontal disease, and
lesions of the mucosa, have been associated to RPD
use
8,16,23,24,27
19
. These deleterious effects on dental and
supporting tissues may be mitigated if a maintenance
program is undertaken, including oral hygiene instruction
and motivation
as well as regular check-up by the dentist.
Thus, many questions arise in the clinics: which are the
2,3,18
most important variables for the functional evaluation of
RPDs after placement? How long is it necessary to detect
technical and biological problems? Is there any
correspondence between patient and professional
evaluation? The answers to these questions might help to
determine which factors influence satisfaction and
acceptance over time. Therefore, the aim of this crosssectional
study was to carry out an exploratory analysis to
determine
technical, biological, and satisfaction variables
for
the evaluation of RPDs after five years of delivery,
comparing
patient and professional assessments.
MATERIALS AND METHODS
Subjects
One hundred twenty-nine partially edentulous patients
from the Removable Partial Denture Clinic, Dental School of
the Lutheran University of Brazil, Canoas/RS, were
contacted by phone and invited to participate in this study,
from June to December 2002. The RPDs were constructed
by fourth-year undergraduate students, following the
principles and methods of RPD fabrication adopted by the
institution (Kratchovil, 1963)
, during the second semester
of 1997.
17
22,26
26
A convenience sample was selected within the five-year
timespan and the patient’s agreement to participate. The
sample was composed of 50 patients, 11 males and 39 females,
between 36 and 76 years old. Each subject had a maxillary or
mandibular RPD to be evaluated in the study. Table 1 shows
the demographic and clinical characteristics of the study
sample.
Procedures
Each subject received detailed explanation about the
research procedures and signed an informed consent.
Evaluation by the Patient
Data were collected using a structured questionnaire.
The level of RPD acceptance was classified as “excellent”,
“good” or “bad”. Retention, mastication, esthetics, hygiene
and comfort variables were classified as “excellent”, “good”,
“regular” or “bad”.
Evaluation by the professional
One examiner (EGR), a certified prosthodontist, carried
out the clinical and prosthesis examination. The following
variables were collected:
1- Oral and prosthesis Hygiene: Using a plaque
disclosing solution, the patient’s oral hygiene status were
classified as “excellent” (visible plaque in up to 25% of the
dental surfaces); “good” (25 to 75% of visible plaque); or
“bad” (more than 75% of plaque) (adapted from Benson
and Spolsky, 1979)
. Prosthesis hygiene status was classified
in the same categories, evaluating the internal surface of
acrylic bases (adapted from Tarbet, 1982)
1
.
2- Prosthesis retention: The level of retention was
21
classified as “excellent” (resistance to vertical displacement);
“good” (moderate resistance to vertical displacement); or
“bad” (no resistance to vertical displacement)
.
3- Prosthesis Stability: The stability of RPDs was
1
classified as “excellent” (stable to rocking movement and
the occlusal rests were seated); “good” (stable, but some
rests were not seated); or “bad” (displaced by rocking
movement)
.
4- Metallic framework and acrylic base: The framework
1
was classified as “well-fitting”; “with misfit in rests and
clasps”; or “fractured”. The adaptation of the base to the
bearing mucosa was classified as “well-fitting”; “moderate
misfit”; or “total misfit”
.
5- Prosthetic needs: The RPD was evaluated in relation
1
to the need of relining, repair or new confection, being
classified as “need of intervention” or “no intervention
needed”.
Statistical Analysis
Data were analyzed by descriptive statistics and by
Spearman’s correlation tests at the 0.05% level of
significance. Spearman’s correlation coefficients (r
) tested
the association between acceptance of RPD and variables
evaluated by the patient and by the professional.
s
COSME D C, BALDISSEROTTO S M, FERNANDES E de L, RIVALDO E G,
RESULTS
Table 2 shows the results of the evaluation of RPD–
related variables by the patient. More than 70% of patients
classified their prostheses as “excellent” for retention,
mastication, and comfort. Esthetics and hygiene reached
54% and 62% of excellence, respectively.
Professional evaluation of RPD–related variables is
shown in Table 3. Retention and stability had 98 and 96% of

ROSING C K, SHINKAI R S A
TABLE 1- Demographic and clinical characteristics of the sample (n=50)
approval, respectively (“excellent” and “good” categories).
Oral and prosthesis hygiene evaluations were “bad” for 34
and 20% of cases, respectively. The framework was “wellfitting”
in 92%, “misfit in rests and clasps” in 4% and
“fractured”
in 4% of subjects; acrylic base was “well-fitting”
in
92%, “moderate misfit” in 6% and “totally misfit” in 2%
(data
not shown).
Spearman’s coefficients of correlation between
patient’s RPD acceptance and other variables are shown in
Absolute Relative
Frequency Frequency (%)
Sex Males 11 22
Females 39 78
Total 50 100
Age (years) 30 to 40 2 4
41 to 50 11 22
51 to 60 18 36
more than 60 19 38
Total 50 100
Dental arch with RPD Maxilla 23 46
Mandible 27 54
Total 50 100
Dental status of the opposite arch Complete Denture 12 24
RPD 23 46
Natural Teeth 15 30
Total 50 100
Type of prosthesis Dental-supported 15 30
Dental-mucosa-supported 35 70
Total 50 100
Kennedy Classification Class 1 20 40
Class 2 1 2
Class 3 0 0
Class 4 2 4
Class 1 + modification 2 4
Class 2 + modification 12 24
Class 3 + modification 13 26
Total 50 100
TABLE 2- Patient evaluation of retention, mastication, esthetics, hygiene and comfort variables
Patient Evaluation
  Absolute Frequency (%)
Excellent Good Regular Bad Total
Retention 36(72) 5(10) 8(16) 1(2) 50(100)
Mastication 37(74) 4(8) 7(14) 2(4) 50(100)
Esthetics 27(54) 12(24) 9(18) 2(4) 50(100)
Hygiene 31(62) 14(28) 4(8) 1(2) 50(100)
Comfort 36(72) 9(18) 3(6) 2(4) 50(100)
113
114
FUNCTIONAL EVALUATION OF ORAL REHABILITATION WITH REMOVABLE PARTIAL DENTURES AFTER FIVE YEARS
Table 4. Regarding patient evaluation, retention, mastication,
esthetics, hygiene, and comfort were significantly associated
with acceptance. For the professional evaluation, retention,
stability and metallic framework condition showed a positive
correlation with acceptance.
The responses by the patient and by the professional
were compared using Spearman’s coefficients of correlation
(Table 5). Retention showed a positive correlation in both
assessments. Mastication and comfort (patient evaluation)
correlated positively with stability (professional evaluation).
Hygiene evaluated by the patient had no association with
oral hygiene evaluated by the professional, as well as
prosthesis hygiene.
Regarding the relationship between RPD acceptance by
the patient and the professional evaluation for need of
intervention, 74% of subjects rated their satisfaction level
as “excellent” even when intervention was considered
needed.
DISCUSSION
In this exploratory study, technical and biological
variables evaluated by the patient and by the professional
were related to the success of treatment with RPDs after
five years of placement, considering the association of those
variables with the level of general acceptance.
Retention, chewing and comfort evaluated by the patient
had an approval rate greater than 70%. Comfort, esthetics,
prosthesis biomechanics and abutment prognosis must be
considered by the clinician for the framework design
.
Simplicity of RPD framework influences mechanical
(retention and stability) and biological (health of oral tissues)
factors and, consequently, general satisfaction
. Most
patients who rated the comfort with their RPDs as “excellent”
had prostheses supported by teeth and mucosa, which
contradicts previous studies that reported a relationship
between Kennedy Class I and Class II RPDs and
discomfort
. However, in relation to masticatory evaluation,
the results are in accordance with Gunne and Wall
7,22
 (1985),
who found that RPDs with distal extension do not negatively
influence the subjective experience of mastication.
Excellence rates for retention (66%) and stability (70%)
by the clinician were in accordance with the technical
conditions of the framework and base (adequate adaptation
15
13
6
in 92% of patients). The major complications related to RPDs
are mechanical failures such as fracture of connectors and
occlusal rests and distortion of retentive clasps, besides
misfit of bases and occlusal problems, which influences
denture retention and stability
. Excessive force transmission
to periodontal tissues and poor oral hygiene may increase
the incidence of caries and periodontal disease in RPD users
5
but a cause-effect relationship has not been proved yet.
Previous studies have shown that most RPD wearers
are satisfied with their prostheses
. The percentage
of satisfaction also was high in this study. Seventy-four
percent of patients rated their acceptance level as “excellent”
even if an intervention was indicated by the professional
evaluation. Van Waas, et al.
22
11,12,25,28
 (1994) reported that masticatory
performance increases with the addition of occlusal units to
the RPD. About two thirds of subjects had distal extension
RPDs (Kennedy Class I and II) and the large number of
occlusal units may be responsible for this high level of
TABLE 4- Spearman’s coefficients of correlation (r
)
between patient acceptance and other variables
TABLE 3- Professional evaluation of retention, stability, oral and prosthesis hygiene
Professional Evaluation
  Absolute Frequency (%)
Excellent Good Bad Total
Retention 33(66) 16(32) 1(2) 50(100)
Stability 35(70) 13(26) 2(4) 50(100)
Oral Hygiene 7(14) 26(52) 17(34) 50(100)
Prosthesis Hygiene 17(34) 23(46) 10(20) 50(100)
r
s
Patient Evaluation
Retention 0.508** <0.001
Mastication 0.560** <0.001
Esthetics 0.335* 0.017
Hygiene 0.365** 0.009
Comfort 0.787** <0.001
Professional Evaluation
Retention 0.313* 0.027
Stability 0.420** 0.002
Metallic Framework 0.321* 0.023
Acrylic Base 0.277 0.052
Oral Hygiene 0.069 0.633
Prosthesis Hygiene 0.214 0.135
** Significant at the 0.01 level of significance.
  * Significant at the 0.05 level of significance.
p
s
6
COSME D C, BALDISSEROTTO S M, FERNANDES E de L, RIVALDO E G,
acceptance. We found association between RPD acceptance
and retention, chewing, comfort, esthetics, and hygiene
(patient evaluation), and retention, stability, and metallic
framework status (professional evaluation). Those variables
are dependent on the RPD design showing the importance
of adequate planning and RPD fabrication as predictors of
patient satisfaction
.
Comparing the patient and the professional evaluations,
12
there was correspondence between retention/retention and
chewing comfort/stability variables. Oral and prosthesis
hygiene did not show any relation. Other studies have
compared patient and professional evaluations of fixed
partial, complete, and implant-supported prostheses
but few are related to RPDs. Zlataric and Celebic
 (2001)
reported that the patient evaluation of RPD was opposite to
the prosthodontist assessment: the more satisfied patients
had lower rates in the professional evaluation, while the
less satisfied patients showed higher professional rates.
This may indicate that different dimensions are considered
by the patient and by the professional to rate RPD clinical
success.
The limitations of our study are the sample size and the
fact that the study subjects cannot be considered
representative of the entire population of RPD wearers’.
Further epidemiological studies on RPD acceptance and
professional-patient evaluation of long term functioning
should include more subjects from different settings to
increase external validity. Longitudinal studies would allow
TABLE 5- Spearman’s correlation coefficients (r
s
PATIENTPROFESSIONAL
26
9,10,14,20
the analysis of the evolution of technical, biological,
psychological, and social aspects, assessed both by the
professional and by the patient.
CONCLUSION
In this study, oral rehabilitation with RPD was considered
satisfactory after five years of use by most patients. Even in
the absence of regular recalls, patients classified their
prosthesis as “excellent” in relation to technical and
biological variables, which were associated with the level of
general acceptance. The correspondence of ratings for
technical aspects between patient and professional
evaluations can be explained by the patients’ receptive
attitude towards RPDs, which must be assessed by the
clinician during all phases of the dental treatment to optimize
the long term clinical success.
REFERENCES
1- Benson D, Spolsky VW. A clinical evaluation of removable partial
dentures with I-bar retainers. Part 1. J Prosthet Dent. 1979;41:24654.
2- Bergman B, Hugoson A, Olsson CO. Caries, periodontal and
prosthetic findings in patients with removable partial dentures: a
ten-year longitudinal study. J Prosthet Dent.1982;48:506-14.
) between variables evaluated by the patient and by the professional
      Patient        Professional
   Retention Mastication Hygiene Comfort Retention Stability Oral Prosthesis
Retention 1.000 0.894** 0.617** 0.777** 0.409** 0.449** 0.044 0.087
p< 0.001 p< 0.001 p< 0.001 p= 0.003 p= 0.001 p= 0.762 p= 0.546
Mastication —- 1.000 0.626** 0.807 0.350* 0.461** 0.028 0.074
p< 0.001 p< 0.001 p= 0.013 p= 0.001 p= 0.846 p= 0.609
Hygiene —- —- 1.000 0.602** 0.402** 0.445** 0.157 0.227
p< 0.001 p=0.004 p= 0.001 p= 0.275 p= 0.114
Comfort —- —- —- 1.000 0.449** 0.559** 0.086 0.221
p= 0.001 p< 0.001 p= 0.552 p= 0.122
Retention —- —- —- —- 1.000 0.903** 0.173 0.257
p< 0.001 p= 0.230 p= 0.072
Stability —- —- —- —- —- 1.000 0.252 0.381**
p= 0.077 p= 0.006
Oral Hygiene —- —- —- —- —- —- 1.000 0.692**
p< 0.001
Prosthesis —- —- —- —- —- —- —- 1.000
Hygiene
** Significant at the 0.01 level of significance.
  * Significant at the 0.05 level of significance.

ROSING C K, SHINKAI R S A
   Hygiene    Hygiene
115
116
FUNCTIONAL EVALUATION OF ORAL REHABILITATION WITH REMOVABLE PARTIAL DENTURES AFTER FIVE YEARS
3- Bergman B, Hugoson A, Olsson CO. A 25 year longitudinal study
of patients treated with removable partial dentures. J Oral
Rehabil.1995;22:595-9.
4- Brunetti RF. Odontogeriatria: noções de interesse clínico. São
Paulo: Artes Médicas; 2002.
5- Budtz-Jorgensen E, Isidor F. A 5-year longitudinal study of
cantilevered fixed partial dentures compared with removable partial
dentures in a geriatric population. J Prosthet Dent.1990;64:42-7.
6- Budtz-Jorgensen E, Bochet G. Alternate framework designs for
removable partial dentures. J Prosthet Dent.1998;80:58-66.
7- Celebic A, Knezovic-Zlataric D. A comparison of patient’s
satisfaction between complete and partial removable denture wearers.
J Dent.2003;31:445-51.
8- Drake CW. Beck JD. The oral status of elderly removable partial
denture wearers. J Oral Rehabil.1993; 20: 53-60.
9- Ettinger RL, Jakobsen JR. A comparison of patient satisfaction
and dentist evaluation of overdenture therapy. Community Dent
Oral Epidemiol.1997;25:223-7
10- Fenlon MR, Sherriff M, Walter JD. Agreement between clinical
measures of quality and patients’ rating of fit of existing and new
complete dentures. J Dent.2002;30:135-9.
11- Frank RP, Milgrom P, Leroux BG, Hawkins NR. Treatment
outcomes with mandibular removable partial dentures: a populationbased
study of patient satisfaction J Prosthet Dent.1998;80:36-45.
12- Frank RP, Brudvik JS, Leroux B, Milgrom P, Hawkins N.
Relationship between the standards of removable partial dentures
construction, clinical acceptability and patient satisfaction. J Prosthet
Dent.2000;83:521-7.
13-Gunne HS, Wall AK. The effect of new complete dentures on
mastication and dietary intake. Acta Odontol Scand.1985;43:25768.
14- Heydecke G, Klemetti E, Awad MA, Lund JP, Feine JS. Relationship
between prosthodontic evaluation and patient ratings of mandibular
conventional and implant prostheses. Int J Prosthodont.
2003;16:307-12.
15- Hummel SK, Wilson MA, Marker VA, Nunn ME. Quality of
removable partial dentures worn by the adult U.S. population. J
Prosthet Dent.2002;88:37-43.
16- Kern M, Wagner B. Periodontal findings in patients 10 years
after insertion of removable partial dentures. J Oral
Rehabil.2001;28:991-7.
17- Kratochvil F. J.: Influence of occlusal rest position and clasp
design on movement of abutment teeth. J Prosthet Dent.1963;13:11424.
18- Polansky R, Haas M, Lorenzoni M, Wimmer G, Pertl C. The
effect of three different periodontal pre-treatment procedures on
the success of telescopic removable partial dentures. J Oral
Rehabil.2003;30:353-63.
19- Redford M, Drury TF, Kingman A, Brown LJ. Denture use and
the technical quality of dental prostheses among persons 18-74 years
of age: United State, 1988-1991. J Dent Res.1996;75(sp issue):71425.
20- Stipetic J, Celebic A, Jerolimov V, Vinter I, Kraljevic S, Rajic Z.
The patient’s and therapist’s evaluation of bridges of different
materials and age. Coll Antropol. 2000;24:25-9.
21- Tarbet WJ. Denture plaque: quiet destroyer. J Prosthet Dent.
1982; 48:647-52.
22- Van Waas M, Meeuwissen J, Meuwissen R, Kayser A, Kalk W,
Van’t Hof M. Relationship between wearing a removable partial
denture and satisfaction in the elderly. Community Dent Oral
Epidemiol. 1994;22:315-8.
23- Yeung AL, Lo EC, Chow TW, Clark RK. Oral health status of
patients 5-6 years after replacement of cobalt-chromium removable
partial dentures. J Oral Rehabil. 2000;27:183-9.
24- Yusof Z, Isa Z. Periodontal status of teeth in contact with denture
in removable partial denture wearers. J Oral Rehabil. 1994;21:77-86.
25- Zlataric DK, Celebic A, Valentic-Peruzovic M, Celic R, FilipovicZore
I, Baucic M. The satisfaction with the removable partial denture
therapy
in the Croatian adult population. Coll Antropol.
2000;24:485-94.
26- Zlataric DK, Celebic A. Treatment outcomes with removable
partial dentures: a comparison between patient and prosthodontist
assessments. Int J Prosthodont. 2001;14:423-6.
27- Zlataric DK, Celebic A, Valentic-Peruzivic M. The effect of
removable partial dentures on periodontal health of abutment and
non-abutment teeth. J Periodontol. 2002;73:137-44.
28- Zlataric DK, Celebic A, Valentic-Peruzovic M, Jerolimov V,
Panduric J. A survey of treatment outcomes with removable partial
dentures. J Oral Rehabil. 2003;30:847-54.