A modified nasoalveolar molding technique for correction of unilateral cleft nose deformity

Nasoalveolar Molding in Lately Presented Moderate to Severe Unilateral Cleft Lip and Palate Infants: Does it Add?

Alignment of the alveolar segments with early nasal cartilage tackling is the foundation upon which excellent surgical results are dependent. The purpose is to evaluate the short-term effect of triple combination of passive alveolar molding with early nasal molding augmented by controlled corrective power of lip tapping in lately presented moderate to severe unilateral complete cleft lip and palate infants. A prospective case series study was conducted in Plastic and Maxillofacial Surgery Department, Ain Shams University in collaboration with Orthodontics Department, from January 2021 till June 2023, 15 infants elder than 2 months till 6 months were enrolled in the study. Eight nasal anthropometric measurements ratios through 2-dimension assessment and 4 maxillary arch measurements ratios through 3-dimension assessment were recorded. Extraoral results revealed clinically and statistically decrease of nasal width, alar base width, alar base height ratios, and columellar angle, while increase of nasal height, nasal dome height, columellar length, and alar projection length ratios. Intraoral results revealed clinically and statistically decrease in cleft width with maintained posterior arch width and intercanine width. In conclusion, this triple combination helped in presurgical lessening the alveolar and nasal deformity of such elder infants in a shorter time in comparison with other conventional methods with lesser number of appointments decreasing burden of care to their families improving their compliance.

Parental anxiety/incompliance and patients' complications during COVID-19 pandemic regarding nasoalveolar molding treatment of infants with cleft lip/palate

OBJECTIVES

The ideal time for nasoalveolar molding (NAM) of infants with cleft lip and/or palate (CLP) is the first weeks after birth. The burden and responsibility that this method of treatment imposes on parents may result in incompliance. The coronavirus (COVID-19) pandemic and the redirection of health resources can make the situation worse. Therefore, this study evaluated the anxiety, complications, and incompliance of parents undergoing NAM during the COVID-19 pandemic.

MATERIALS AND METHODS

Demographic data of 35 infants with CLP treated during the COVID-19 pandemic, compliance and level of anxiety of both parents in addition to their complications were reported. The association between different variables and incompliance was evaluated by simple and multiple logistic regressions. The level of significance was considered at P value less than 0.05.

RESULTS

The highest level of parental anxiety related to the NAM process was the delay in ending the treatment. Meanwhile, the reason for the highest level of anxiety related to attending the treatment sessions was the probability of the infant's COVID-19 infection. Fathers expressed lower levels of anxiety than mothers, significantly. The most prevalent NAM complication was skin irritation. Parents of younger infants (≤28 days) and those with a history of COVID-19 infection were more compliant.

CONCLUSIONS

COVID-19 pandemic caused a significant increase in the level of anxiety in both parents, mainly due to the delay in treatment ending and the possibility of infant's infection. Moreover, considering the importance of treatment time, parents of younger infants were more compliant with the NAM process.

Comparison of Facial Growth between Two Nasoalveolar Molding Techniques in Patients with Unilateral Complete Cleft Lip

BACKGROUND

Nasoalveolar molding (NAM) has become standard treatment in the authors' craniofacial center. There are two types of presurgical NAM: the Grayson and Figueroa techniques. The Grayson method involves active alveolar molding, and the Figueroa method involves passive alveolar molding. The authors previously found no differences in number of clinic visits, costs, or 6-month postoperative outcome between the two techniques. The authors extended the previous study to evaluate facial growth between these two groups.

METHODS

In this randomized single-blind study, conducted between May of 2010 and March of 2013, the authors recruited 30 patients with unilateral complete cleft lip and palate and randomized them for Grayson or Figueroa presurgical NAM. Standard lateral cephalometric measurements at 5 years were used to determine facial growth.

RESULTS

Twenty-nine patients completed 5 years of follow-up. There were no statistically significant differences in facial cephalometric measurements between the two groups.

CONCLUSION

Presurgical NAM using either a passive or active NAM technique produced similar facial growth patterns after unilateral cleft lip and palate repair.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, II.

Recent Advances in Nasoalveolar Molding Therapy Using 3D Technology

Presurgical Nasoalveolar Molding (NAM) is an adjunctive treatment modality designed to reorient misaligned tissue structures and nasal cartilage in cleft lip and/or palate (CL/P) patients. Recent advances in NAM therapy focus on modifications to the intraoral molding plate or nasal stent intended to improve treatment outcomes, ease of use, compliance, and cost-effectiveness. Notably, 3D technological advancements have been employed to design NAM devices more efficiently and create objective, standardized means of measuring progressive morphological changes during therapy. These advances are designed to incorporate 3D technology in the treatment of cleft lip and/or palate to render it more precise, accurate, and time-efficient.

The Perception and Experience of Parents of Children with Cleft Lip and Palate Concerning the Use Pre-Surgical Infant Orthopedics: A Questionnaire-Based Cross-Sectional Survey

Background: A transitory period prior to the surgical correction of cleft lip and palate (CLP) is associated with adverse impacts, which may require a medical intervention. Pre-surgical infant orthopedics (PSIO) is deemed to reduce the functional and psychological burden, offering a transition until the definite surgical intervention. Aim: To assess the attitude of Iraqi mothers concerning the application and management of pre-surgical orthopedic appliances in children with cleft lip and palate, taking consideration of the mothers’ occupational status. Methods: The cross-sectional study was conducted in the College of Dentistry at Baghdad University from 5 January 2020 to 4 December 2021. A questionnaire form was validated based on existing data related to the assessment of parents’ satisfaction concerning PSIO. Results: A concern related to the impression procedure was reported by a minority of the participants (6.8%) and it was associated mainly to the perceptions of housewives’ vs. working mothers (p < 0.05). The perceived infants’ discomfort during the impression procedure reported at 11.9% was significantly associated with housewives’ status (p < 0.05). In general, the vast majority of respondents considered the impression as being non-invasive (96.6%). Most mothers found no difficulties in following the instructions of the specialist regarding the insertion of the PSIO and/or taping the elastic bands (62.7%). Respondents believed that CLP infants routinely require PSIO treatment. Interestingly, only a minority of mothers performed an Internet search to look for information about PSIO (7%). The majority indicated the PSIO treatment as beneficial for their infant and a substantial proportion of respondents were satisfied with the outcomes of PSIO, encouraging other parents to consent the PSIO treatment. Conclusion: In general, mothers broadly acknowledged the primary concept of PSIO and accepted the proposed treatment, with a positive attitude towards pre-surgical CLP management, regardless their socio-economic status. They seemed to understand well the expected benefits of PSIO, including feeding improvement, normalization of speech, and optimization of future surgical outcomes.

Three-dimensional Changes of Maxillary Alveolar Morphology After Using Modified Nasoalveolar Molding in Patients with Complete Unilateral Cleft lip and Palate

OBJECTIVE

This study aimed to evaluate the three-dimensional changes in maxillary alveolar morphology after using modified NAM in patients with complete unilateral cleft lip and palate.

DESIGN

This is a retrospective study.

SETTING

The study was carried out in the dental hospital, Faculty of Dentistry of Naresuan University, Phitsanulok, which serves as a tertiary care center.

PATIENTS

The population sample consisted of 19 patients with nonsyndromic complete unilateral cleft lip and palate.

INTERVENTION

All patients received the modified NAM treatment based on the treatment protocol of the Naresuan University Cleft and Craniofacial Center, Thailand.

MAIN OUTCOME MEASURE

Dental models obtained at pre-treatment (T0) and post-treatment (T1) were scanned to construct the digital models. The maxillary digital models that showed dimensional changes between T0 and T1 were measured using a computer graphic software.

RESULTS

The modified NAM resulted in a significant decrease in the anterior cleft width, posterior cleft width, and anterior arch width. Conversely, it caused a significant increase in the length of the lesser cleft segment and the greater segment rotation. However, the change in the height of both segments and posterior arch width was not found to be significant.

CONCLUSIONS

The modified NAM was an effective device for reducing the alveolar cleft width while improving the alignment of alveolar cleft segments.

Comparative evaluation of nasal and alveolar changes in complete unilateral cleft lip and palate patients using intraoral and extraoral nasoalveolar molding techniques: randomized controlled trial

Objectives

Cleft lip and palate is a common congenital anomaly that impairs the aesthetics, speech, hearing, and psychological and social life of an individual. To achieve good aesthetic outcomes, presurgical nasoalveolar molding (NAM) has become important. Currently, the intraoral NAM technique is widely practiced. Numerous modifications have been made to intraoral NAM techniques, but the original problem of compliance leading to discontinuation of treatment remains unsolved. Therefore, the present study compared an extraoral NAM technique with the intraoral NAM technique.

Materials and Methods

Twenty infants with complete unilateral cleft lip and palate were included and divided into two equal groups. Group A received the intraoral NAM technique, and Group B received the extraoral NAM technique. Pre- and postoperative extraoral and intraoral measurements were recorded.

Results

Groups A and B did not differ significantly in any extraoral or intraoral parameter.

Conclusion

The extraoral NAM technique is as effective as the intraoral NAM technique in achieving significant nasal and alveolar changes in com-plete unilateral cleft lip and palate patients. Additionally, it reduces the need for frequent hospital visits for activation and the stress associated with the insertion and removal of the intraoral NAM plate, thereby improving compliance.

Patient satisfaction and quality of life after orthodontic treatment for cleft lip and palate deformity

OBJECTIVES

Patients with cleft lip-cleft palate (CLP) often require orthodontic treatment, with or without orthognathic surgery. Patient satisfaction is the most important outcome parameter in orthodontic treatment. This study aimed to (1) determine patient satisfaction and quality of life (QoL) after orthodontic treatment and (2) identify associated factors.

MATERIAL AND METHODS

This prospective cross-sectional study recruited patients with CLP who had completed orthodontic treatment at a craniofacial center in Taiwan. Participants (N=213) had received treatment for unilateral CLP (n=99), bilateral CLP (n=50), cleft lip and alveolus (n=39), and isolated cleft palate (n=25). Self-report questionnaires evaluated satisfaction with appearance and QoL; multiple regression analysis examined associated factors. Participants' expectations of treatment results were also reported.

RESULTS

Participants reported moderate satisfaction with facial appearance and QoL. Satisfaction with treatment was lower or much lower than expected for 13% of participants. Treatment for bilateral CLP was associated with the lowest satisfaction with overall appearance (r = -8.123, P < 0.05); participants who had received orthognathic surgery had the highest satisfaction (r = 5.534, P < 0.05). Treatment for unilateral and bilateral CLP was associated with low QoL for smile (both P < 0.05).

CONCLUSIONS

Orthodontic treatment had a positive effect on facial appearance and quality of life in patients with CLP. Type of cleft and orthognathic surgery significantly influenced satisfaction with facial appearance.

CLINICAL RELEVANCE

Efforts must be taken to modify treatment strategies for patients with bilateral CLP in order to improve satisfaction with appearance following treatment.

NAM-help or burden? Intercultural evaluation of parental stress caused by nasoalveolar molding: a retrospective multi-center study

Objectives

Nasoalveolar molding (NAM) was developed to facilitate easier treatment and better outcomes for cleft lip and palate (CLP) patients. The aim of this study was to investigate the parental burden and possible intercultural differences of this treatment modality, which is often argued to burden parents to an extraordinary amount.

Materials and methods

Standardized questionnaires (available in English, Mandarin, and German) with 15 non-specific and 14 NAM-specific items to be retrospectively answered by Likert scales by parents of unilateral CLP patients with completed NAM treatment.

Results

The parents of 117 patients from two treatment centers in Taiwan and Germany were included. A very high level of overall satisfaction was found in both countries with significant intercultural differences in prenatal parent information, feeding problems, dealing with 3rd party’s perception, and experienced personal effort.

Conclusion

NAM is an effective treatment tool for children’s CLP deformities and their caregivers in overcoming the feeling of helplessness. Intercultural differences may be due to infrastructural reasons, cultural attitudes and habits, or different public medical education.

Clinical relevance

In addition to facilitating easier surgical treatment, NAM can be seen as a powerful coping strategy for parents dealing with a CLP deformity of their child and does not seem to burden them extraordinarily.

What Is the Burden of Care of Nasoalveolar Molding?

OBJECTIVE

This systematic review aims to evaluate nasoalveolar molding (NAM) in the context of burden of care defined as physical, psychosocial, or financial burden on caregivers.

SEARCH METHODS

Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, 5 databases were searched from inception through December 24, 2019, for keywords and subject headings pertaining to cleft lip and/or palate and NAM.

ELIGIBILITY CRITERIA

Clinical studies on NAM with reference to physical (access to care, number of visits, distance traveled), psychosocial (caregiver perceptions, family interactions, breast milk feeding), and financial (direct and indirect costs) burden were included.

DATA COLLECTION AND ANALYSIS

Study selection was performed by 2 independent reviewers.

RESULTS

The search identified 1107 articles and 114 articles remained for qualitative synthesis. Burden of care domains were discussed but not measured in 43% of articles and only 25% assessed burden of care through a primary outcome. Of these, 20 articles reported on physical, 8 articles on psychosocial, and 12 articles on financial burden. Quality of evidence is limited by study design and risk of bias.

CONCLUSION

Nasoalveolar molding has been indiscriminately associated with burden of care in the literature. Although NAM may not be the ideal treatment option for all patients and families, the physical considerations are limited when accounting for the observed psychosocial advantages. Financial burden appears to be offset, but further research is required. Teams should directly assess the impact of this early intervention on the well-being of caregivers and advance strategies that improve access to care.

Three-Dimensional Assessment of Morphological Changes Following Nasoalveolar Molding Therapy in Cleft Lip and Palate Patients: A Case Report

The applications of computer-guided technologies for three-dimensional image analysis provide a unique opportunity to quantify the morphological dimensional changes of the face in a practical and convenient way. Symmetry of the nasolabial area is one of the main factors of facial attractiveness as well as being the main objective of the treatment of cleft lip and palate (CLP). Technological advances in computer-guided visualization modes and their applications to three-dimensional stereophotogrammetry provide more practical opportunities and alternatives for facial analysis. Each study, however, uses different protocols for the acquisition and analysis of three-dimensional images. In addition, each study identifies different anthropometric points and calculates linear and angular measurements with overlapping protocols. Therefore, it is appropriate to define a standardization of the three-dimensional analysis of CLP patients to compare the studies of different research centers. The aim of this report is to propose a protocol to standardize the acquisition and analysis of three-dimensional images to evaluate the three-dimensional changes in the nasolabial area in cleft lip and palate patients undergoing pre-surgical nasoalveolar molding (PNAM).

Nasolabial Morphology Following Nasoalveolar Molding in Infants With Unilateral Cleft Lip and Palate

AIM

The aim of the present study is to evaluate the effects of nasoalveolar molding (NAM) therapy on nasolabial morphology three dimensionally, and compare the nasolabial linear and surface distance measurements in infants with unilateral cleft lip and palate.

METHODS

Facial plaster casts of 42 infants with unilateral cleft lip and palate taken at the onset (pre-NAM) and finishing stage (post-NAM) of NAM were scanned with 3dMDface stereophotogrammetry system (3dMD, Atlanta, GA). Nineteen nasolabial linear and surface distance measurements were performed on three-dimensional images. In addition to standard descriptive statistical calculations (means and SDs), pre- and post-NAM measurements were evaluated by paired t test.

RESULTS

All measurements except lip gap, nostril floor width, and nostril diameter increased between pre-NAM and post-NAM. Nostril and lip height increased significantly on the cleft side (P < 0.05). No differences were present between linear and surface distance measurements except for nasal width measurement.

CONCLUSIONS

Nasal and lip symmetry improved with NAM. The use of surface distance measurements may be advised particularly for continuous and curved anatomic structures in which circumference differences are expected.

Effectiveness of presurgical nasoalveolar molding therapy on unilateral cleft lip nasal deformity

OBJECTIVES

To evaluate the effectiveness of pre-surgical nasoalveolar molding (PNAM) in patients with unilateral cleft lip nasal deformities. Methods: This was a retrospective study involving 29 patients with unilateral cleft lip and palate defects, of whom 13 were treated with palatal devices with nasal stents (PNAM group) and 16 were treated with palatal devices without nasal stents or surgical tapes (control group). Submental oblique photographs and orthodontic models were longitudinally obtained at the initial visit (T1) and immediately before (T2) and  after cheiloplasty (T3). Asymmetry of the external nose, degree of columellar shifting, nasal tip/ala nose ratio, nasal base angle, interalveolar gap, and the sagittal difference in the alveolar gap were measured. The study was conducted in the Orthodontic Clinic at Tokushima University Hospital, Tokushima, Japan between 1997 and 2012. Results: At T1, there were no significant intergroup differences in the first 4 asymmetry parameters. At T2, the PNAM group showed a significant improvement in all values compared to the control group. At T3, the PNAM group showed significant improvement in nasal asymmetry and columellar shifting. Model analysis showed significantly greater changes in the inter-alveolar gap and the sagittal difference of the alveolar cleft gap from T1 to T2 in the PNAM group. Conclusion: The use of PNAM is indispensable for pre-surgical orthodontic treatment at the early postnatal age.

A semi-automated virtual workflow solution for the design and production of intraoral molding plates using additive manufacturing: the first clinical results of a pilot-study

Computer-aided design and computer-aided manufacturing (CAD/CAM) technology has been implemented in the treatment of cleft lip and palates (CLP) by several research groups. This pilot study presents a technique that combines intraoral molding with a semi-automated plate generation and 3D-printing. The clinical results of two intraoral molding approaches are compared. This is the first clinical investigation of semi-automated intraoral molding. Our study included newborns with unilateral CLP. Plaster models were digitalized and measured by two independent observers. Two methods of CAD/CAM-assisted intraoral molding were compared: (i) stepwise manual design of molding plates (conventional CAD/CAM-intraoral molding) and (ii) a semi-automated approach with an automated detection of alveolar ridges (called RapidNAM) assisted by a graphical user interface (GUI). Both approaches significantly narrowed the clefts and resulted in a harmonic alveolar crest alignment. The GUI was easy to use and generated intraoral molding devices within minutes. The presented design solution is an efficient technical refinement with good clinical results. The semi-automated plate generation with a feasible GUI is fast but allows individual adaptations. This promising technique might facilitate and foster the more widespread use of CAD/CAM-technology in intraoral molding therapy.

Presurgical Preparation of Infants With Unilateral Cleft Lip and Palate: The SAC-PP-MR Innovative Technique

In this article, we demonstrate an effective, cheap, and fast way to shape the nasal alar cartilage in patients with unilateral cleft lip and palate. This technique straightens the vomer and brings the philtrum, columella, premaxilla, and the maxillary frenum to the midsagittal plane, while the alveolar ridges are shaped and positioned. This reduces the lip and palatal cleft to zero even in a 4-week period.

The role of Nasoalveolar molding: A 3D Prospective analysis

Nasoalveolar molding (NAM) is commonly employed to reduce the alveolar segments into proper alignment and to improve nasal symmetry in patients with cleft lip and palate. This study examines the periodical progression of NAM treatment over time. 20 patients with complete unilateral cleft lip and palate were prospectively recruited. A 2 stage NAM treatment protocol was applied. Stage 1 involved adjustment of the alveolar segments (mean age 15.6 days), while Stage 2 added nasal stents and started average 43 days after stage 1. 3D images (n = 241) were obtained prior to NAM initiation and weekly until the end of treatment. The cleft lip area, bilateral nostril areas, and the nostril height and width were measured. Treatment was assessed in the Cleft (C) side and the Non-cleft (N). There was significant difference in the C/N ratio of the nostril area, width, and height at pre-treatment (0.9 ± 0.3, 4.1 ± 1.1, and 0.5 ± 0.2), at the end of stage 1 (1.1 ± 0.3, 2.2 ± 0.6, and 0.8 ± 0.2), and at the end of stage 2 treatment (1.8 ± 0.3, 1.8 ± 0.4, and 1.2 ± 0.1); p < 0.05. Comparative 3D analysis with dense sampling offers a precise methodology for showing effects of NAM treatment. The morphological changes achieved with NAM therapy occur in early treatment phase.

RapidNAM: generative manufacturing approach of nasoalveolar molding devices for presurgical cleft lip and palate treatment

Nasoalveolar molding (NAM) is an accepted treatment strategy in presurgical cleft therapy. The major drawbacks of the treatment listed in the literature relate to the time of the treatment and the coordination of the required interdisciplinary team of therapists, parents, and patients. To overcome these limitations, we present the automated RapidNAM concept that facilitates the design and manufacturing process of NAM devices, and that allows the virtual modification and subsequent manufacture of the devices in advance, with a growth prediction factor adapted to the patient’s natural growth. The RapidNAM concept involves (i) the prediction of three trajectories that envelope the fragmented alveolar segments with the goal to mimic a harmonic arch, (ii) the extrusion from the larger toward the smaller alveolar segment along the envelope curves toward the harmonic upper alveolar arch, and (iii) the generation of the NAM device with a ventilation hole, fixation pin, and fixation points for the nasal stents. A feasibility study for a vector-based approach was successfully conducted for unilateral and bilateral cleft lip and palate (CLP) patients. A comparison of the modified target models with the reference target models showed similar results. For further improvement, the number of landmarks used to modify the models was increased by a curve-based approach.

Correlation between Nasoalveolar Molding and Surgical, Aesthetic, Functional and Socioeconomic Outcomes Following Primary Repair Surgery: a Systematic Review

OBJECTIVES

The authors performed a systematic review to evaluate the potential beneficial effects of the nasoalveolar molding appliance on nonsyndromic unilateral clefts of the lip and/or palate prior to primary lip repair.

MATERIAL AND METHODS

A literature search was performed using three electronic databases (PubMed, Embase, Web of Science) and three journals ("Cleft Palate-Craniofacial Journal", "Plastic and Reconstructive Surgery Journal" and "American Journal of Orthodontics and Dentofacial Orthopaedic") from January 1980 to April 2017. Data extraction was performed with tables treating different subjects: surgical, aesthetical, functional, socio-economical effects of nasoalveolar molding (NAM) appliances and the evolution of NAM appliances, especially three-dimensional technology.

RESULTS

Of the 145 articles retrieved in the literature surveys, 28 were qualified for the final analysis and 20 studies were excluded because of their small sample size (less than 10 patients) and/or too long follow-up (exceeded 18 months). Four randomized controlled trials were available. Although literature allowed discussing the short-term benefits of NAM appliance and the three-dimensional technology, scientific evidence is lacking.

CONCLUSIONS

Based on the results, nasoalveolar molding appliances have positive surgical, aesthetical, functional and socio-economical effects on unilateral clefts of the lip and/or palate treatment before the primary repair surgeries. Three-dimensional technology results in a more efficient and predictable nasoalveolar molding appliance treatment. However, nasoalveolar molding appliance effect in a short term remains unclear with the available literature. Further studies that integrate three-dimensional technology in a large scale are still needed.